PSU PREVIOUS YEAR AVERAGE QUESTIONS

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Created on November 23, 2025 By skverma.verma29@gmail.com
MATH QUIZ

AVERAGE QUIZ

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Category: MATH QUIZ

AVERAGE, MEAN & WEIGHTED AVERAGE

EXAM: SSC CPO 2021

AVERAGE OF 11 NUMBERS IS 60. IF ONE NUMBER IS EXCLUDED, AVERAGE BECOMES 58. FIND EXCLUDED NUMBER.

a) 82

b) 70

c) 80

d) 75

SOLUTION: TOTAL = 11 × 60 = 660
REMAINING = 10 × 58 = 580
EXCLUDED = 660 – 580 = 80

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Category: MATH QUIZ

AVERAGE, MEAN & WEIGHTED AVERAGE

EXAM: SSC MTS 2020

THE AVERAGE OF 6 NUMBERS IS 18. TWO NUMBERS ARE 10 AND 20. FIND AVERAGE OF REMAINING NUMBERS.

a) 20

b) 17

c) 19

d) 18

SOLUTION: TOTAL = 6 × 18 = 108
REMAINING SUM = 108 – (10+20) = 78
AVERAGE = 78 / 4 = 19.5 ≈ 19

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Category: MATH QUIZ

Exam: SBI Clerk 2019

A cricket player scored 40, 72, 65, and 83 runs in four matches. What is his average score?

a) 70

b) 65

c) 60

d) 64

Solution: Sum = 40+72+65+83 = 260. Avg = 260 ÷ 4 = 65.

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Category: MATH QUIZ

AVERAGE, MEAN & WEIGHTED AVERAGE

EXAM: SSC CPO 2019

AVERAGE OF 7 CONSECUTIVE NUMBERS IS 30. FIND THE LARGEST NUMBER.

a) 33

b) 36

c) 35

d) 34

SOLUTION: MIDDLE NUMBER = 30
NUMBERS: 27, 28, 29, 30, 31, 32, 33
LARGEST = 33

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Category: MATH QUIZ

Exam: IBPS PO 2018

The average weight of 40 students is 55 kg. If a new student joins, the average becomes 55.5 kg. What is the weight of the new student?

a) 75.50 KG

b) 70.50 KG

c) 80.50 KG

d) 90.50 KG

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Category: MATH QUIZ

Exam: Railway Group D 2018

The average of 7 numbers is 15. If each number is increased by 5, what will be the new average?

a) 15

b) 20

c) 16

d) 30

Solution: Increase each of 7 numbers by 5 → average increases by 5 → new avg = 15+5 = 20.

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Category: MATH QUIZ

Exam: IBPS Clerk 2019

A student scored 58, 72, 65 and 85 marks in four subjects. What is his average?

a) 80

b) 67

c) 70

d) 65

Sum = 58+72+65+85 = 280. Avg = 280/4 = 70

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Category: MATH QUIZ

Exam: SSC CPO 2017

The average of 5 positive numbers is 27. The first two numbers are 20 and 22. What is the average of the remaining three numbers?

a) 32

b) 33

c) 31

d) 34

Solution: Total of 5 numbers = 5×27 = 135. First two sum = 20+22 = 42. Remaining three sum = 135 − 42 = 93. Avg of remaining three = 93 ÷ 3 = 31.

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Category: MATH QUIZ

AVERAGE, MEAN & WEIGHTED AVERAGE

EXAM: SSC MTS 2021

AVERAGE OF 9 NUMBERS IS 50. IF ONE NUMBER IS INCREASED BY 18, WHAT IS NEW AVERAGE?

a) 54

b) 52

c) 53

d) 51

SOLUTION: INCREASE IN TOTAL = 18
NEW AVERAGE INCREASE = 18 / 9 = 2
NEW AVERAGE = 50 + 2 = 52

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Category: MATH QUIZ

Exam: RRB JE 2019

The average of 12 results is 44. If the average of the first 6 results is 40, what is the average of the remaining results?

a) 50

b) 48

c) 55

d) 52

Total = 12×44 = 528. First 6 avg 40 → total first6 = 240. Remaining 6 total = 528−240 = 288 → avg = 288/6 = 48.

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Category: MATH QUIZ

Exam: SSC CPO 2020

The average of 8 numbers is 21. If each number is increased by 3, what is the new average?

a) 22

b) 24

c) 23

d) 25

Each increased by 3 → avg increases by 3 → 21+3 = 24

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Category: MATH QUIZ

AVERAGE, MEAN & WEIGHTED AVERAGE

EXAM: SSC CPO 2018

THE AVERAGE OF FIRST 20 NATURAL NUMBERS IS:

a) 9.5

b) 11

c) 10

d) 10.5

SOLUTION: AVERAGE OF FIRST N NATURAL NUMBERS = (N + 1) / 2
= (20 + 1) / 2 = 10.5

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Category: MATH QUIZ

Exam: SSC CGL 2017

The average of 4 numbers is 52. If the three numbers are 48, 56, and 50, what is the fourth number?

a) 54

b) 56

c) 52

d) 58

Sum target = 4×52 = 208. Given three sum = 48+56+50 = 154. Fourth = 208−154 = 54

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Category: MATH QUIZ

Exam: RRB NTPC 2016

The average of 12 numbers is 18. If a new number 30 is added, what is the new average?

a) 22

b) 19

c) 18.5

d) 20

Solution: Total = 12×18 = 216. Add 30 → new total = 246. New avg = 246 ÷ 13 = 18.923… ≈ 19

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Category: MATH QUIZ

Exam: IBPS PO 2020

The average of 8 numbers is 25. If 2 numbers, 20 and 28, are removed, what is the new average?

a) 26.33

b) 25.33

c) 22.33

d) 24.33

Table of Contents
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Find the total sum of the 8 numbers
Step 2: Subtract the removed numbers
Step 3: Find the new average
✅ Answer:

Find the total sum of the 8 numbers

Total Sum=Average×Number of terms=25×8=200

Step 2: Subtract the removed numbers

Remaining Sum=200−(20+28)=200−48=152

Step 3: Find the new average

Now 2 numbers are removed, so remaining numbers:

8−2=6

New Average=152/6=25.333

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Category: MATH QUIZ

AVERAGE, MEAN & WEIGHTED AVERAGE

EXAM: SSC CPO 2018

THE AVERAGE OF 5 CONSECUTIVE EVEN NUMBERS IS 36. FIND THE SMALLEST NUMBER.

a) 30

b) 36

c) 32

d) 34

SOLUTION: MIDDLE NUMBER = 36
NUMBERS: 32, 34, 36, 38, 40
SMALLEST = 32

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Category: MATH QUIZ

Exam: LIC Assistant 2018

A man spends ₹200, ₹250, ₹175, ₹300, and ₹275 in five days. What is his average spending?

a) ₹245

b) ₹240

c) ₹220

d) ₹225

Solution: Sum = 200+250+175+300+275 = 1200. Avg = 1200 ÷ 5 = 240

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Category: MATH QUIZ

AVERAGE, MEAN & WEIGHTED AVERAGE

EXAM: SSC CHSL 2019

THE AVERAGE OF 15 NUMBERS IS 20. IF EACH NUMBER IS MULTIPLIED BY 2, FIND NEW AVERAGE.

a) 45

b) 40

c) 35

d) 30

SOLUTION: IF EACH NUMBER IS MULTIPLIED → AVERAGE ALSO MULTIPLIES
NEW AVERAGE = 20 × 2 = 40

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Category: MATH QUIZ

AVERAGE, MEAN & WEIGHTED AVERAGE

EXAM: SSC MTS 2019

THE AVERAGE MARKS OF 15 STUDENTS IS 40. IF MARKS OF ONE STUDENT IS 60, FIND AVERAGE OF REMAINING STUDENTS.

a) 40

b) 39

c) 41

d) 38

SOLUTION: TOTAL MARKS = 15 × 40 = 600
REMAINING TOTAL = 600 – 60 = 540
AVERAGE = 540 / 14 = 38.57 ≈ 39

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Category: MATH QUIZ

Exam: Railway Group D 2019

The average of three numbers is 45. The first two numbers are 42 and 48. What is the third number?

a) 50

b) 45

c) 54

d) 40

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Category: MATH QUIZ

AVERAGE, MEAN & WEIGHTED AVERAGE

EXAM: SSC CHSL 2020

THE AVERAGE OF 10 NUMBERS IS 15. IF EACH NUMBER IS INCREASED BY 2, FIND THE NEW AVERAGE.

a) 18

b) 17

c) 15

d) 16

SOLUTION: INCREASE IN EACH NUMBER = 2
NEW AVERAGE = 15 + 2 = 17

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Category: MATH QUIZ

Exam: IBPS Clerk 2020

The average of 10 numbers is 18. If each number is doubled, what will be the new average?

a) 20

b) 18

c) 36

d) 40

Doubling each doubles avg: 18×2 = 36

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Category: MATH QUIZ

Exam: SSC CGL 2019

The average temperature for 10 days is 34°C. If the temperature on the 11th day is 44°C, what is the new average?

a) 34.91°C

b) 35.91°C

c) 37.91°C

d) 36.91°C

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Category: MATH QUIZ

IBPS PO 2021

The average age of 5 people is 30 years. If one new person joins and the average becomes 31, what is the age of the new person?

a) 37

b) 38

c) 36

d) 39

Alright, let’s solve it step by step 👌

Average age of 5 people = 30 years
👉 Total age of 5 people = years

After one new person joins, total people = 6
New average = 31 years
👉 Total age of 6 people = years

Age of the new person
= Total age of 6 people − Total age of 5 people
= years

✅ Answer:

The age of the new person is 36 years.

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Category: MATH QUIZ

AVERAGE, MEAN & WEIGHTED AVERAGE

EXAM: SSC GD 2018

THE AVERAGE OF 4 NUMBERS IS 50. THREE NUMBERS ARE 45, 55, 60. FIND THE FOURTH NUMBER.

a) 60

b) 40

c) 45

d) 50

SOLUTION: TOTAL = 4 × 50 = 200
SUM OF 3 = 45 + 55 + 60 = 160
FOURTH = 200 – 160 = 40

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Category: MATH QUIZ

Exam: SSC CHSL 2020

The average age of a class of 40 students is 15. If the age of the teacher is included, the average increases to 15.5. What is the age of the teacher?

a) 35.5

b) 45

c) 36.5

d) 40

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Category: MATH QUIZ

Exam: SSC GD 2018

The average of three consecutive even numbers is 36. What is the largest number?

a) 35

b) 34

c) 38

d) 36

Let numbers be n−2, n, n+2 (three consecutive even). Average = n = 36 → largest = n+2 = 38.

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Category: MATH QUIZ

AVERAGE, MEAN & WEIGHTED AVERAGE

EXAM: SSC CGL 2020

AVERAGE SALARY OF 20 MEN IS ₹20000 AND OF 30 WOMEN IS ₹15000. FIND OVERALL AVERAGE SALARY.

a) 16500

b) 17500

c) 17000

d) 18000

SOLUTION: TOTAL SALARY = (20×20000) + (30×15000)
= 400000 + 450000 = 850000
TOTAL PEOPLE = 50
AVERAGE = 850000 / 50 = 17000

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Category: MATH QUIZ

AVERAGE, MEAN & WEIGHTED AVERAGE

EXAM: SSC CGL 2019

THE AVERAGE OF 5 NUMBERS IS 20. IF ONE NUMBER IS EXCLUDED, THE AVERAGE BECOMES 18. FIND THE EXCLUDED NUMBER.

a) 26

b) 24

c) 28

d) 30

SOLUTION: TOTAL OF 5 NUMBERS = 5 × 20 = 100
TOTAL OF 4 NUMBERS = 4 × 18 = 72
EXCLUDED NUMBER = 100 – 72 = 28

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Category: MATH QUIZ

AVERAGE, MEAN & WEIGHTED AVERAGE

EXAM: SSC GD 2019

THE AVERAGE OF 8 NUMBERS IS 45. IF ONE NUMBER IS 65, FIND THE AVERAGE OF REMAINING NUMBERS.

a) 43

b) 44

c) 40

d) 42

SOLUTION: TOTAL = 8 × 45 = 360
REMAINING SUM = 360 – 65 = 295
AVERAGE = 295 / 7 = 42.14 ≈ 42

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Category: MATH QUIZ

Exam: SSC CHSL 2022

The average weight of 30 students is 50 kg. If one student leaves, whose weight is 65 kg, what is the new average?

a) 49.6

b) 49.5

c) 49.4

d) 49.8

Solution: Total = 30×50 = 1500. Remove 65 → new total = 1435 over 29 students → avg = 1435/29 = 49.4827586 ≈ 49.

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Category: MATH QUIZ

Exam: SSC GD 2019

The average of five numbers is 18. If the sixth number added is 30, what is the new average?

a) 22

b) 20

c) 21

d) 19

Solution: Total = 5×18 = 90. Add 30 → 120 over 6 → avg = 20.

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Category: MATH QUIZ

Exam: SSC CGL 2018

The average of 5 numbers is 42. If one number is removed and the new average becomes 40, what is the removed number?

a) 50

b) 55

c) 45

d) 52

Solution: -

5 numbers average 42 → total = 5×42 = 210. New average 40 for 4 numbers → new total = 4×40 = 160. Removed = 210 − 160 = 50.

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Category: MATH QUIZ

AVERAGE, MEAN & WEIGHTED AVERAGE

EXAM: SSC CHSL 2021

THE AVERAGE OF 6 NUMBERS IS 25. IF ONE NUMBER IS REPLACED BY 35, THE AVERAGE INCREASES BY 2. FIND THE REPLACED NUMBER.

a) 21

b) 23

c) 25

d) 27

SOLUTION: INCREASE IN AVERAGE = 2
TOTAL INCREASE = 6 × 2 = 12
NEW – OLD = 12 35 – OLD = 12 → OLD = 23

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Category: MATH QUIZ

AVERAGE, MEAN & WEIGHTED AVERAGE

EXAM: SSC CHSL 2020

THE AVERAGE AGE OF 20 STUDENTS IS 18 YEARS. IF TEACHER’S AGE IS INCLUDED, AVERAGE BECOMES 19. FIND TEACHER’S AGE.

a) 40

b) 35

c) 39

d) 38

SOLUTION: TOTAL OF STUDENTS = 20 × 18 = 360
TOTAL INCLUDING TEACHER = 21 × 19 = 399
TEACHER’S AGE = 399 – 360 = 39

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Category: MATH QUIZ

Exam: RRB JE 2019

The average of 4 numbers is 52. If one more number is added and the average becomes 55, what is the fifth number?

a) 67

b) 69

c) 70

d) 68

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Category: MATH QUIZ

AVERAGE, MEAN & WEIGHTED AVERAGE

EXAM: SSC GD 2021

THE AVERAGE WEIGHT OF 8 PERSONS IS 60 KG. ONE PERSON LEAVES AND A NEW PERSON OF WEIGHT 65 KG JOINS. NEW AVERAGE BECOMES 61 KG.
FIND WEIGHT OF THE PERSON WHO LEFT.

a) 54 KG

b) 52 KG

c) 58 KG

d) 56 KG

SOLUTION: TOTAL INITIAL WEIGHT = 8 × 60 = 480
NEW TOTAL WEIGHT = 8 × 61 = 488
INCREASE = 8 KG
SO, NEW PERSON – OLD PERSON = 8 65 – OLD = 8 → OLD = 57 KG (APPROX NEAREST OPTION: 56)

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Category: MATH QUIZ

Exam: SSC CGL 2020

The average of 6 numbers is 32. If one number is 40, what is the average of the remaining numbers?

a) 33.1

b) 32.4

c) 31.4

d) 30.4

Total = 6×32 = 192. Remove 40 → remaining total = 152 over 5 → avg = 152/5 = 30.4

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Category: MATH QUIZ

Exam: SSC CGL 2020

The average of 6 consecutive natural numbers is 28.5. What is the largest number?

a) 32

b) 31

c) 30

d) 33

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Category: MATH QUIZ

Exam: SSC CHSL 2022

The average of 15 results is 75. If the average of the first 7 results is 70 and the average of the next 7 results is 78, find the 15th result.

a) 77

b) 73

c) 89

d) 75

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Category: MATH QUIZ

SSC MTS 2018

A student scored 70, 82, 91 and 75 in four subjects. What is his average score?

a) 81

b) 83

c) 79.5

d) 76

et’s solve it step by step 😊

Scores in four subjects: 70, 82, 91, 75

Total marks
$70 + 82 + 91 + 75 = 318$

Number of subjects = 4

Average score
$3184=79.5\dfrac{318}{4} = 79.5$

✅ Answer:

The student’s average score is 79.5 marks.

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Category: MATH QUIZ

AVERAGE, MEAN & WEIGHTED AVERAGE

EXAM: SSC GD 2021

AVERAGE OF 10 NUMBERS IS 35. IF ONE NUMBER IS WRONGLY TAKEN AS 50 INSTEAD OF 30, FIND CORRECT AVERAGE.

a) 35

b) 36

c) 34

d) 33

SOLUTION: ERROR = 50 – 30 = 20
CORRECT TOTAL = (10×35) – 20 = 350 – 20 = 330
CORRECT AVERAGE = 330 / 10 = 33

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Category: MATH QUIZ

AVERAGE, MEAN & WEIGHTED AVERAGE

EXAM: SSC CGL 2021

THE AVERAGE OF 12 NUMBERS IS 25. IF TWO NUMBERS 30 AND 40 ARE REMOVED, FIND THE NEW AVERAGE.

a) 22

b) 23

c) 24

d) 25

SOLUTION: TOTAL OF 12 NUMBERS = 12 × 25 = 300
REMOVED SUM = 30 + 40 = 70
REMAINING SUM = 300 – 70 = 230 REMAINING NUMBERS = 10
NEW AVERAGE = 230 / 10 = 23

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Category: MATH QUIZ

Exam: SSC GD 2021

The average age of a family of 6 members is 22 years. A baby of age 2 is born. What is the new average age?

a) 20.14

b) 19.14

c) 18.14

d) 21.14

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Category: MATH QUIZ

Exam: Railway ALP 2018

The average age of 9 students is 14 years. If the teacher’s age is included, the average becomes 15 years. What is the teacher’s age?

a) 25

b) 23

c) 22

d) 24

Total students = 9×14 = 126. With teacher average 15 for 10 → total = 10×15 = 150. Teacher age = 150−126 = 24.

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Category: MATH QUIZ

Exam: SSC CHSL 2021

The average of 10 numbers is 45. If 3 numbers are removed and their average is 40, what is the average of the remaining numbers?

a) 47

b) 49

c) 50

d) 48

Total = 10×45 = 450. Removed 3 numbers average 40 → removed sum = 3×40 = 120. Remaining total = 450−120 = 330 over 7 → avg = 330/7 ≈ 47.142… ≈ 47.

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Category: MATH QUIZ

Exam: SSC CGL 2021

The average salary of 25 employees is ₹32,000. If the manager’s salary is added, the average becomes ₹33,000. What is the manager’s salary?

a) ₹58,000

b) ₹52,000

c) ₹57,000

d) ₹60,000

Total = 25×32000 = 800,000. New total = 26×33000 = 858,000. Manager salary = 858,000 − 800,000 = 58,000.

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Category: MATH QUIZ

AVERAGE, MEAN & WEIGHTED AVERAGE

EXAM: SSC CGL 2019

AVERAGE OF 25 ITEMS IS 40. AVERAGE OF NEXT 35 ITEMS IS 60. FIND OVERALL AVERAGE.

a) 50

b) 52

c) 54

d) 55

TOTAL = (25×40) + (35×60)
= 1000 + 2100 = 3100
TOTAL ITEMS = 60
AVERAGE = 3100 / 60 = 51.67 ≈ 52

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Category: MATH QUIZ

Exam: RRB NTPC 2020

The average rainfall for 6 months is 120 mm. If one month recorded 160 mm, what is the total rainfall of the remaining 5 months?

a) 600 mm

b) 650 mm

c) 560 mm

d) 520 mm

Total rainfall = 6×120 = 720. One month 160, remaining 5 total = 720−160 = 560.

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Category: MATH QUIZ

AVERAGE, MEAN & WEIGHTED AVERAGE

EXAM: SSC MTS 2021

A CLASS HAS 40 STUDENTS. AVERAGE MARKS OF BOYS IS 60 AND GIRLS IS 50. IF NUMBER OF BOYS = 25, FIND CLASS AVERAGE.

a) 53.75

b) 57

c) 55

d) 56.25

SOLUTION: GIRLS = 15
TOTAL MARKS = (25×60) + (15×50) = 1500 + 750 = 2250
AVERAGE = 2250 / 40 = 56.25

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PSU PREVIOUS YEAR AVERAGE QUESTIONS

Find the total sum of the 8 numbers

Step 2: Subtract the removed numbers

Step 3: Find the new average

✅ Answer:

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Find the total sum of the 8 numbers

Step 2: Subtract the removed numbers

Step 3: Find the new average

✅ Answer:

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