NUMERICAL ANALYTICS: SIMPLIFICATIONS QUIZ 1

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MATH SIMPLIFICATIONS

SIMPLIFICATION SKILLS TEST – NUMERICAL ANALYTICS QUIZ 1

1 / 152

Evaluate:

a. 137

b. 138

c. 135

d. 136

2 / 152

SIMPLIFICATION (BODMAS & APPROXIMATION)

(SSC CGL 2023)

SIMPLIFY:
48 ÷ 6 × 3 + 12 – 5

a. 31

b. 33

c. 29

d. 35

SOLUTION:
= 48 ÷ 6 × 3 + 12 – 5
= 8 × 3 + 12 – 5
= 24 + 12 – 5
= 36 – 5
= 31

3 / 152

Simplify: (8+2)²−4 × 5

a. 100

b. 110

c. 80

d. 96

Explanation: (10)²−20=100−20=80

4 / 152

EVALUATE: 72÷6+3³

a. 39

b. 42

c. 36

d. 45

EXPLANATION:
72÷6=12, 3³=27, 12+27=39

5 / 152

SOLVE:

a. 16

b. 15.8

c. 15.6

d. 17

6 / 152

FIND THE VALUE: 8 × 4 − 6 + 2

a. 30

b. 32

c. 28

d. 34

EXPLANATION:
8×4=32, 32−6=26,, 26+2=28

7 / 152

Simplify:

a. 23/20

b. 26/20

c. 29/20

d. 31/20

LCM of 4 and 5 is 20 →

8 / 152

EVALUATE:
[(3×5)²−(6×4)]÷3

a. 67

b. 68

c. 65

d. 66

EXPLANATION:
3×5=15, 15²=225, 6×4=24, 225−24=201, 201÷3=67

9 / 152

EVALUATE: 9 × (6−2) + 5

a. 45

b. 41

c. 39

d. 37

EXPLANATION:
6−2=4, 9×4=36, 36+5=41

10 / 152

Simplify:

a. 72

b. 60

c. 68

d. 64

11 / 152

EVALUATE:{60−[(4+2)×5]}÷5

a. 6

b. 5

c. 7

d. 8

EXPLANATION:-

4+2=6→6×5=30→60−30=30→30÷5=6

12 / 152

SIMPLIFY:

a. 10

b. 12

c. 16

d. 14

13 / 152

Evaluate:

a. 234

b. 236

c. 232

d. 238

14 / 152

SIMPLYFY:

a. 21

b. 20

c. 23

d. 22

EXPLANATION:
6²=36, 2³=8→44÷4=11, 5 × 2 = 10

11+10=21

15 / 152

Simplify:

a. 9.7

b. 9.4

c. 9.6

d. 9.5

16 / 152

SIMPLIFY:
(72/8 + 3)²−5 × 6

a. 114

b. 124

c. 120

d. 110

72÷8=9, 9+3=12, 12²=144, 144−30=114

17 / 152

SOLVE:

a. 18.25

b. 17.25

c. 16.25

d. 15.25

18 / 152

Find: 20 + 5²−3 × 4

a. 27

b. 25

c. 18

d. 33

EXPLANATION:
5²=25, 3×4=12, 20+25−12=33

19 / 152

SIMPLIFY:
[(30÷5)+(2³)]×3

a. 44

b. 39

c. 40

d. 42

EXPLANATION:
30÷5=6, 2³=8, 6+8=14, 14×3=42

20 / 152

WHAT IS THE SIMPLIFIED VALUE OF 120 ÷ 2 + 18 × 2?

a. 78

b. 66

c. 96

d. 84

EXPLANATION:
120÷2=60, 18 × 2 = 36, 60+36=96

21 / 152

SIMPLIFICATION (BODMAS & APPROXIMATION)

(SSC CHSL 2023)

APPROXIMATE:
602 × 48 ≈ ?

a. 28000

b. 29000

c. 30000

d. 32000

SOLUTION:
602 ≈ 600
48 ≈ 50

= 600 × 50 = 30000

22 / 152

Which is the smallest?

a. 0.0005

b. 0.05

c. 0.5

d. 0.005

23 / 152

Find the value of:

a. 70

b. 71

c. 68

d. 72

24 / 152

SIMPLIFY:

a. 216

b. 218

c. 215

d. 217

EXPLANATION:
36÷6=6→9+6=15→15²=225

225−10=215

25 / 152

WHAT IS THE VALUE OF 60 ÷ 5 + 6 × 3?

a. 27

b. 30

c. 36

d. 33

EXPLANATION:
60÷5=12, 6×3=18, 12+18=30

26 / 152

WHAT IS THE RESULT OF:
(3²+5²)×(10÷5)

a. 72

b. 68

c. 80

d. 76

EXPLANATION:
3²=9, 5²=25, 9+25=34, 10÷5=2, 34×2=68

27 / 152

SIMPLIFY: (15+5)²÷ 10

a. 30

b. 20

c. 50

d. 40

EXPLANATION:
15+5=20, 20²=400, 400÷10=40

28 / 152

EVALUATE: {[(25÷5)²]−(2³+1)}×3

a. 40

b. 42

c. 48

d. 46

EXPLANATION:
25÷5=5→5²=25,
2³=8→8+1=9→25−9=16,
16×3=48

29 / 152

What is the result of $2$ ?

a. 2.25

b. 1.75

c. 1.25

d. 2.0

30 / 152

EVALUATE: 7 + (6²−12) ÷ 2

a. 21

b. 19

c. 22

d. 20

EXPLANATION:
6²=36, 36−12=24, 24÷2=12, 7+12=19

31 / 152

SIMPLIFICATION (BODMAS & APPROXIMATION)

(SSC CHSL 2022)

SIMPLIFY:
(18 × 5) + (64 ÷ 8) – 12

a. 90

b. 94

c. 88

d. 86

SOLUTION:
= 90 + 8 – 12
= 98 – 12
= 86

32 / 152

FIND THE RESULT OF: 100−[25×(2+2)]

a. 25

b. 75

c. 50

d. 0

EXPLANATION:
2+2=4, 25×4=100, 100−100=0

33 / 152

a. 324

b. 361

c. 289

d. 300

EXPLANATION:
3×2=6, 72÷6=11, 12+5=17, 17²=289

34 / 152

WHAT IS THE SIMPLIFIED VALUE OF 100 ÷ [ 25−(10+5) ] ?

a. 20

b. 25

c. 50

d. 10

EXPLANATION:
10+5=15, 25−15=10, 100÷10=10

35 / 152

SOLVE:

a. 33

b. 30

c. 32

d. 31

EXPLANATION:
6+3=9→8×9=72→72÷3=24

24+7=31

36 / 152

SIMPLIFY:

a. 15

b. 16

c. 17

d. 18

37 / 152

Simplify:

a. 70

b. 60

c. 40

d. 50

38 / 152

Which operation should be performed first in this expression: 6 + 4 × (3 − 1)?

a. 6+4

b. 4X2

c. ALL AT ONCE

d. 3-1

Explanation: According to BODMAS, solve brackets first.

39 / 152

Solve:

a. 21

b. 18

c. 20

d. 19

40 / 152

a. 14

b. 13

c. 16

d. 15

EXPLANATION:
4+6=10→10²=100,
8²=64→100−64=36
2²=4→36÷4=9,
9+5=14
Answer: 14

41 / 152

Simplify:

a. 10/12

b. 8/15

c. 5/6

d. 3/10

Explanation: Keep–Change–Flip →

42 / 152

SIMPLIFY:

a. 38

b. 37

c. 40

d. 39

43 / 152

EVALUATE:
[7²−(3×5)]×(6÷2)

a. 84

b. 105

c. 96

d. 102

EXPLANATION:
7²=49, 3×5=15, 49−15=34, 6÷2=3, 34×3=102

44 / 152

SIMPLIFICATION (BODMAS & APPROXIMATION)

SSC CGL 2019)

SIMPLIFY:
84 ÷ 7 × 5 + 8

a. 60

b. 68

c. 70

d. 65

SOLUTION:
= 12 × 5 + 8
= 60 + 8
= 68

45 / 152

WHAT IS THE VALUE OF (30÷5)³?

a. 64

b. 18

c. 216

d. 36

EXPLANATION:
30÷5=6, 6³=216

46 / 152

Evaluate:

a. 170

b. 150

c. 160

d. 180

47 / 152

FIND TH VALUE OF:

a. 169

b. 121

c. 100

d. 144

EXPLANATION:
3²=9, 36÷9=4, 6+4=10, 10²=100

48 / 152

Evaluate:

a. 50

b. 51

c. 49

d. 48

49 / 152

SIMPLIFICATION (BODMAS & APPROXIMATION)

(SSC CHSL 2022)

SIMPLIFY:
(25 × 4) + (36 ÷ 6) – 15

a. 95

b. 89

c. 85

d. 91

SOLUTION:
= 100 + 6 – 15
= 106 – 15
= 91

50 / 152

SIMPLIFY: 72− [24÷(4×2)]

a. 70

b. 78

c. 69

d. 71

EXPLANATION:
4×2=8, 24÷8=3, 72−3=69

51 / 152

EVALUATE: [(3²+4²) − (5²−6)] × 2

a. 10

b. 14

c. 12

d. 16

EXPLANATION:
3²=9,4²=16→9+16=25

5²=25→25−6=19

25−19=6×2=12

FINAL: 12

52 / 152

WHAT IS THE RESULT OF 100 − (6²+4²)?

a. 50

b. 52

c. 48

d. 54

EXPLANATION:
6²=36, 4²=16, 36+16=52, 100−52=48

53 / 152

SIMPLIFICATION (BODMAS & APPROXIMATION)

(SSC MTS 2021)

SIMPLIFY:
144 ÷ 12 × (5 + 3)

a. 96

b. 92

c. 88

d. 84

SOLUTION:
= 144 ÷ 12 × 8
= 12 × 8
= 96

54 / 152

SOLVE: (20+10) ÷ 5 + 8

a. 10

b. 12

c. 11

d. 14

EXPLANATION:
20+10=30, 30÷5=6, 6+8=14

55 / 152

FIND THE RESULT OF: 81 ÷ 3 ÷ 3

a. 9

b. 1

c. 27

d. 3

EXPLANATION:
LEFT TO RIGHT: 81÷3=27, 27÷3=9

56 / 152

SIMPLIFY:
{100−[8×(3+2)]}÷2

a. 60

b. 50

c. 40

d. 30

EXPLANATION:
3+2=5, 8×5=40, 100−40=60, 60÷2=30

57 / 152

Simplify:

a. 240

b. 242

c. 243

d. 241

58 / 152

EVALUATE: 7 + (6²−10) ÷ 4

a. 21

b. 17

c. 20

d. 13.5

EXPLANATION:
6²=36, 36−10=26, 26÷4=6.5, 7+6.5=13.50

59 / 152

SIMPLIFY:

a. 19

b. 20

c. 18

d. 21

60 / 152

SOLVE: (36÷3) + (5×2) −4

a. 14

b. 20

c. 18

d. 16

EXPLANATION:
36÷3=12, 5×2=10, 12+10=22, 22−4=18

61 / 152

SIMPLIFY:

a. 20

b. 30

c. 25

d. 15

EXPLANATION:

96÷4=24→4²=16→24+16=40→40÷2=20

Answer: 20

62 / 152

What is the value of: 12 + 5 × 2 − 4 ÷ 2?

a. 17

b. 19

c. 20

d. 18

Table of Contents
Toggle

Step-by-step:
✅ Final Answer: 20

Step-by-step:

Multiplication and Division first:

5 × 2 = 10,\quad 4 ÷ 2 = 2 ]

Replace in the expression:

12 + 10 − 2 ]

Now do Addition and Subtraction:

12 + 10 = 22,\quad 22 − 2 = 20 ]

✅ Final Answer:

63 / 152

SOLVE:

a. 18

b. 20

c. 22

d. 16

EXPLANATION:
81+27=108→108÷6=18,
2²=4→18+4=22

Final Answer: 22

64 / 152

SIMPLIFICATION (BODMAS & APPROXIMATION)

(SSC CGL 2018)

APPROXIMATE:
(89 × 11) + 52 ≈ ?

a. 950

b. 1050

c. 1000

d. 1100

SOLUTION:
89 ≈ 90
11 ≈ 10

= 90 × 10 = 900
900 + 52 ≈ 950 (CLOSEST)

65 / 152

SIMPLIFY:
100−{(2+3)²+[8÷4]}

a. 72

b. 74

c. 75

d. 73

EXPLANATION:
2+3=5, 5²=25, 8÷4=2, 25+2=27, 100−27=73

66 / 152

EVALUATE: 48 ÷ 4 + 9 −5

a. 14

b. 16

c. 12

d. 15

EXPLANATION:
48÷4=12, 12+9=21, 21−5=16

67 / 152

SIMPLIFY: 6²− (4×3) + 5

a. 32

b. 29

c. 31

d. 30

EXPLANATION:
6²=36, 4×3=12, 36−12=24, 24+5=29

68 / 152

Simplify:

a. 188

b. 182

c. 180

d. 184

69 / 152

SIMPLIFICATION (BODMAS & APPROXIMATION)

(SSC CGL 2019)

SIMPLIFY:
72 ÷ 8 × 4 + 10

a. 42

b. 44

c. 48

d. 46

SOLUTION:
= 9 × 4 + 10
= 36 + 10
= 46

70 / 152

Solve:

a. 40

b. 41

c. 43

d. 42

71 / 152

SIMPLIFY: 144÷12+5×3

a. 29

b. 27

c. 33

d. 32

EXPLANATION:
144÷12=12, 5×3=15, 12+15=27

72 / 152

FIND THE VALUE: (12×5) − (6÷2)

a. 57

b. 54

c. 58

d. 60

EXPLANATION:
12×5=60, 6÷2=3, 60−3=57

73 / 152

SIMPLIFY:

a. 66

b. 82

c. 84

d. 88

74 / 152

SIMPLIFY:
(18+12÷4)²−3³

a. 418

b. 410

c. 414

d. 420

EXPLANATION:
12÷4=3, 18+3=21, 21²=441, 3³=27, 441−27=414

75 / 152

FIND THE VALUE: 5 × 4 + 3²

a. 29

b. 31

c. 27

d. 28

EXPLANATION:
5×4=20, 3²=9, 20 + 9 = 29

76 / 152

EVALUATE:
{[5²−(6+4)]÷3}×2

a. 16

b. 10

c. 14

d. 12

EXPLANATION:
5²=25, 6+4=10, 25−10=15, 15÷3=5, 5×2=10

77 / 152

WHAT IS THE RESULT OF (25+5) ÷ 3 + 4²?

a. 20

b. 21

c. 22

d. 26

EXPLANATION:
25+5=30, 30÷3=10, 4²=16, 10+16=26

78 / 152

SOLVE: 144 ÷ (12−6)

a. 18

b. 36

c. 12

d. 24

EXPLANATION:
12−6=6, 144÷6=24

79 / 152

Evaluate:

a. 240

b. 260

c. 250

d. 270

80 / 152

What is 25% of 240?

a. 60

b. 20

c. 50

d. 40

Explanation:

81 / 152

SOLVE:

a. 95

b. 99

c. 98

d. 96

82 / 152

EVALUATE:- (18÷3+4)²−9

a. 92

b. 93

c. 91

d. 90

EXPLANATION:
18÷3=6→6+4=10→10²=100→100−9=91

83 / 152

WHAT IS THE VALUE OF (100−40)÷10+2³?

a. 11

b. 13

c. 12

d. 14

Explanation:
100−40=60, 60÷10=6, 2³=8, 6+8=14

84 / 152

SOLVE: 10+4²÷2

a. 14

b. 18

c. 12

d. 16

EXPLANATION:
4²=16, 16÷2=8, 10+8=18

85 / 152

SIMPLIFY: (5+3)²÷4

a. 20

b. 15

c. 16

d. 18

EXPLANATION:
5+3=8, 8²=64, 64÷4=16

86 / 152

Solve:

a. 30

b. 40

c. 50

d. 60

Explanation:

87 / 152

Solve:

a. 37

b. 36

c. 38

d. 39

88 / 152

EVALUATE:

a. 34

b. 37

c. 36

d. 35

89 / 152

EVALUATE:
[4²×(18÷3)]−10

a. 84

b. 86

c. 88

d. 90

EXPLANATION:
4²=16, 18÷3=6, 16×6=96, 96−10=86

90 / 152

SIMPLIFICATION (BODMAS & APPROXIMATION)

(SSC GD 2020)

APPROXIMATE:
1002 × 39 ≈ ?

a. 41000

b. 40000

c. 39000

d. 38000

SOLUTION:
1002 ≈ 1000
39 ≈ 40

= 1000 × 40 = 40000

91 / 152

SIMPLIFY:

a. 100

b. 49

c. 81

d. 64

92 / 152

Evaluate:

a. 250

b. 248

c. 251

d. 249

93 / 152

FIND THE VALUE OF: 64 ÷ (4×2) + 3

a. 7

b. 11

c. 8

d. 16

EXPLANATION:
4×2=8, 64÷8=8, 8 + 3 = 11

94 / 152

SIMPLIFICATION (BODMAS & APPROXIMATION)

(SSC CGL 2018)

APPROXIMATE:
(78 × 12) + 21 ≈ ?

a. 900

b. 1000

c. 850

d. 950

SOLUTION:
78 ≈ 80
12 ≈ 12

= 80 × 12 = 960
960 + 21 ≈ 980 ≈ 1000 (CLOSEST)

95 / 152

SIMPLIFICATION (BODMAS & APPROXIMATION)

(SSC CGL 2022)

APPROXIMATE:
1210 ÷ 59 ≈ ?

a. 22

b. 18

c. 25

d. 20

SOLUTION:
1210 ≈ 1200
59 ≈ 60

= 1200 ÷ 60 = 20

96 / 152

Evaluate:

a. 10

b. 11.5

c. 13

d. 12

97 / 152

SIMPLIFICATION (BODMAS & APPROXIMATION)

(SSC MTS 2021)

APPROXIMATE:
(199 + 301) × 5 ≈ ?

a. 2400

b. 2700

c. 2500

d. 2600

SOLUTION:
199 ≈ 200
301 ≈ 300

= (200 + 300) × 5
= 500 × 5 = 2500

98 / 152

FIND THE VALUE OF:
(25+5²)÷(2+3)

a. 10

b. 13

c. 12

d. 11

EXPLANATION:
5²=25, 25+25=50, 2+3=5, 50÷5=10

99 / 152

WHAT IS THE VALUE OF: (28÷2+6) × 2

a. 42

b. 44

c. 46

d. 40

EXPLANATION:
28÷2=14, 14+6=20, 20×2=40

100 / 152

SIMPLIFY: (7²−4²) ÷ 3

a. 11

b. 13

c. 15

d. 9

EXPLANATION:
7²=49, 4²=16, 49 - 16 = 33, 33 ÷ 3 = 11

101 / 152

FIND THE RESULT OF 64÷4+3²−5

a. 18

b. 19

c. 20

d. 21

EXPLANATION:
64÷4=16, 3²=9, 16+9=25, 25−5=20

102 / 152

EVALUATE: (10+6)²−4×3?

a. 244

b. 252

c. 238

d. 240

EXPLANATION:
10+6=16, 16²=256, 4×3=12, 256−12=244

103 / 152

SIMPLIFY:

a. 42.5

b. 40.5

c. 41.5

d. 43.5

104 / 152

FIND THE VALUE: 5²+3×4

a. 29

b. 31

c. 37

d. 33

EXPLANATION:
5²=25, 3×4=12, 25+12=37

105 / 152

SIMPLIFY:

a. 58

b. 62

c. 64

d. 60

106 / 152

WHAT IS THE VALUE OF 45+63÷9×2?

a. 61

b. 24

c. 67

d. 59

EXPLANATION:
FIRST SOLVE INSIDE OUT: 63÷9=7, THEN 7×2=14, THEN 45+14=59

107 / 152

EVALUATE:

a. 16

b. 15

c. 14

d. 17

108 / 152

EVALUATE:
6²+4×(15−3)²÷6

a. 140

b. 132

c. 136

d. 128

EXPLANATION:
6²=36, 15−3=12, 12²=144, 144÷6=24, 4×24=96, 96+36=132

109 / 152

SIMPLIFICATION (BODMAS & APPROXIMATION)

(SSC GD 2020)

SIMPLIFY:
(18 + 6) × 5 ÷ 3

a. 20

b. 40

c. 35

d. 30

SOLUTION:
= 24 × 5 ÷ 3
= 120 ÷ 3
= 40

ANSWER: A

110 / 152

SIMPLIFY: (50+10÷2) × 2

a. 120

b. 130

c. 110

d. 100

EXPLANATION:
10÷2=5, 50+5=55, 55×2=110

111 / 152

Find the value of:

a. -42

b. -43

c. -41

d. -44

112 / 152

Simplify:

a. 24

b. 23

c. 21

d. 22

113 / 152

EVALUATE: (18÷2+3)²

a. 121

b. 144

c. 100

d. 81

EXPLANATION:
18÷2=9, 9+3=12, 12²=144

114 / 152

Solve:

a. 95

b. 97

c. 98

d. 96

115 / 152

Simplify:

a. 18

b. 20

c. 16

d. 22

Explanation:
, ,

116 / 152

EVALUATE: 100− [8 × (2+5)]

a. 50

b. 60

c. 56

d. 44

EXPLANATION:
2+5=7, 8×7=56, 100−56=44

117 / 152

SIMPLIFICATION (BODMAS & APPROXIMATION)

(SSC GD 2020)

SIMPLIFY:
(20 + 10) × 6 ÷ 5

a. 50

b. 30

c. 40

d. 36

SOLUTION:
= 30 × 6 ÷ 5
= 180 ÷ 5
= 36

118 / 152

EVALUATE: (18÷3)²

a. 49

b. 36

c. 25

d. 16

EXPLANATION:
18÷3=6, 6²=36

119 / 152

SIMPLIFICATION (BODMAS & APPROXIMATION)

(SSC MTS 2021)

APPROXIMATE:
(399 + 602) × 3 ≈ ?

a. 3300

b. 2700

c. 3600

d. 3000

SOLUTION:
399 ≈ 400
602 ≈ 600

= (400 + 600) × 3
= 1000 × 3 = 3000

120 / 152

Find the value of:

a. 218

b. 219

c. 216

d. 217

121 / 152

Solve:

a. 2596

b. 2450

c. 2500

d. 2400

122 / 152

SIMPLIFY: (45÷5) + (6×3)

a. 29

b. 30

c. 27

d. 28

EXPLANATION:
45÷5=9, 6×3=18, 9+18=27

123 / 152

a. 28

b. 26

c. 25

d. 24

EXPLANATION:
10²=100, 100−36=64, 64÷4=16, 2³=8, 16+8=24

124 / 152

Solve:

a. 8

b. 6

c. 4

d. 10

125 / 152

SOLVE: (30÷3) + (5²)

a. 33

b. 34

c. 36

d. 35

EXPLANATION:
30÷3=10, 5²=25, 10+25=35

126 / 152

a. 46

b. 52

c. 50

d. 48

EXPLANATION:
18÷3=6, 2+6=8, 8²=64, 4²=16, 64−16=48

127 / 152

SIMPLIFY:

a. 22

b. 18

c. 20

d. 16

EXPLANATION:
4³=64, 64+16=80, 2²=4, 80÷4=20

128 / 152

SOLVE:

a. 147

b. 146

c. 148

d. 145

129 / 152

SIMPLIFY:
125÷(5+5)+3²×2

a. 25.5

b. 27.5

c. 30.5

d. 28.5

EXPLANATION:
5+5=10, 125÷10=12.5, 3²=9, 9×2=18, 12.5+18=30.5

130 / 152

SIMPLIFY:

a. 28

b. 24

c. 30

d. 26

131 / 152

SOLVE: 3 + 6 × (5 + 4)

a. 63

b. 54

c. 57

d. 45

EXPLANATION:
5+4=9, 6×9=54, 3+54=57

132 / 152

SIMPLIFICATION (BODMAS & APPROXIMATION)

(SSC MTS 2021)

SIMPLIFY:
150 ÷ 10 × (6 + 4)

a. 160

b. 170

c. 150

d. 140

SOLUTION:
= 150 ÷ 10 × 10
= 15 × 10
= 150

133 / 152

Simplify:

a. 255

b. 265

c. 260

d. 250

134 / 152

SIMPLIFICATION (BODMAS & APPROXIMATION)

(SSC GD 2020)

APPROXIMATE:
999 × 51 ≈ ?

a. 51000

b. 52000

c. 53000

d. 50000

SOLUTION:
999 ≈ 1000
51 ≈ 50

= 1000 × 50 = 50000

135 / 152

SIMPLIFY: (50−20) ÷ 5 + 6

a. 12

b. 15

c. 10

d. 14

EXPLANATION:
50−20=30, 30÷5=6, 6+6=12

136 / 152

SIMPLIFICATION (BODMAS & APPROXIMATION)

(SSC CGL 2022)

APPROXIMATE:
804 ÷ 39 ≈ ?

a. 20

b. 25

c. 22

d. 18

SOLUTION:
804 ≈ 800
39 ≈ 40

= 800 ÷ 40 = 20

137 / 152

SIMPLIFICATION (BODMAS & APPROXIMATION)

(SSC CGL 2023)

SIMPLIFY:
36 ÷ 6 × 4 + 15 – 9

a. 30

b. 24

c. 33

d. 27

SOLUTION:
= 36 ÷ 6 × 4 + 15 – 9
= 6 × 4 + 15 – 9
= 24 + 15 – 9
= 39 – 9
= 30

138 / 152

EVALUATE
120÷(4+2)+4²

a. 34

b. 40

c. 32

d. 36

EXPLANATION:
4+2=6, 120÷6=20, 4²=16, 20+16=36

139 / 152

EVALUATE:

a. 35

b. 33

c. 34

d. 32

140 / 152

SIMPLIFY: (3²+4²) × 2

a. 98

b. 50

c. 58

d. 74

EXPLANATION:
3²=9,4²=16,9+16=25, 25×2=50

141 / 152

SIMPLIFICATION (BODMAS & APPROXIMATION)

(SSC CHSL 2023)

APPROXIMATE:
498 × 19 ≈ ?

a. 10000

b. 9500

c. 9200

d. 9800

SOLUTION:
498 ≈ 500
19 ≈ 20

= 500 × 20 = 10000

142 / 152

EVALUATE:

a. 484

b. 324

c. 400

d. 361

EXPLANATION:
5²=25→25−1=24→24÷2=12

12+6=18, 18²=324

143 / 152

Simplify:

a. 40.15

b. 39.25

c. 36.65

d. 38.75

144 / 152

SIMPLIFY: [(8×3)²÷4]−10

a. 134

b. 132

c. 136

d. 128

EXPLANATION:
8×3=24→24²=576→576÷4=144→144−10=134

145 / 152

SIMPLIFY:

a. 3.5

b. 2.6

c. 1.9

d. 8.6

EXPLANATION:
3³=27,2⁴=16→27+16=43,
5²=25→25−20=5
43÷5=8.6

146 / 152

Evaluate:

a. 191

b. 189

c. 190

d. 192

147 / 152

Simplify:

a. 58

b. 60

c. 59

d. 57

148 / 152

Simplify:

a. 8.6

b. 8.5

c. 8.4

d. 8.7

149 / 152

EVALUATE:
2³+3²×(4+2)

a. 62

b. 60

c. 66

d. 64

EXPLANATION:
2³=8, 3²=9, 4+2=6, 9×6=54, 8+54=62

150 / 152

Evaluate:

a. 112

b. 108

c. 110

d. 106

151 / 152

EVALUATE: 81÷ (3²) + 4

a. 12

b. 11

c. 14

d. 13

EXPLANATION:
3²=9, 81÷9=9, 9+4=13

152 / 152

a. 12

b. 10

c. 8

d. 0

EXPLANATION:
9²=81, 81−81=0, 0÷3=0, 0+8=8

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✅ Final Answer: 20

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