SBI Clerk Mains Quantitative Aptitude (Day-72)

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Approximation

Direction (1-2): What approximate value should come in place of (?) in the following questions?

1) 15.205 ÷ 3 × 8.11 + ? = 12 % of 446 + (7.29)²

A) 80

B) 95

C) 63

D) 120

E) 140

2) ? % of 199 = 279.67 + 279 ÷ 8.1 + 17.29

A) 166

B) 185

C) 225

D) 250

E) 145

Simplification

Direction (3-6): What value should come in place of (?) in the following questions?

3) 20 % of ? – 392 ÷ 14 – 1925 ÷ 11 = 52

A) 1350

B) 1275

C) 1160

D) 1085

E) None of these

4) ? – 142 = 125 % of 56 + 22² – (5/9) of 216

A) 634

B) 678

C) 692

D) 576

E) None of these

5) (2  5/7) ÷ (3  2/9) × (203/114) × 32 =?

A) 72

B) 42

C) 48

D) 54

E) None of these

6) 125 + 8³ +? = 18 % of 800 + (5610 ÷ 11)

A) 17

B) 28

C) 35

D) 9

E) None of these

Number series

Direction (8-10): What value should come in place of (?) in the following number series?

7) 483, 500, 581, 711, 877, ?

A) 952

B) 1124

C) 996

D) 1068

E) 1156

8) 18, 21, 48, 153, 624, ?

A) 2820

B) 2675

C) 3135

D) 3350

E) 3025

9) 117, 120, 125, 136, 161, ?

A) 216

B) 178

C)192

D) 240

E) 224

10) 17, 54, 165, 498, 1497,?

A) 3246

B) 2870

C) 4288

D) 4494

E) 3852

Answers:

1) Answer: C

15.205 ÷ 3 × 8.11 + x = 12 % of 446 + (7.29)²

(15/3) * 8 + x = (12/100) * 450 + 7²

40 + x = 54 + 49

x = 54 + 49 – 40 = 63

2) Answer: A

x % of 199 = 279.67 + 279 ÷ 8.1 + 17.29

(x/100) * 200 = 280 + (280/8) + 17

2x = 280 + 35 + 17

2x = 332

x = 166

3) Answer: B

20 % of x – 392 ÷ 14 – 1925 ÷ 11 = 52

(20/100) * x – (392 / 14) – (1925 / 11) = 52

(20/100) * x = 52 + 28 + 175

(20/100) * x = 255

x = 255 * (100 / 20) = 1275

4) Answer: D

x – 142 = 125 % of 56 + 22² – (5/9) of 216

x = (125/100) * 56 + 484 – (5/9) * 216 + 142

x = 70 + 484 – 120 + 142

x = 576

5) Answer: C

(2 5/7) ÷ (3 2/9) × (203/114) × 32 = x

x = (19/7) × (9/29) × (203/114) × 32

x = 48

6) Answer: A

125 + 8³ + x = 18 % of 800 + (5610 ÷ 11)

x = (18/100) * 800 + (5610 / 11) – 125 – 512

x = 144 + 510 – 125 – 512

x = 17

7) Answer: D

8) Answer: C

18 * 1 + 3 = 21

21 * 2 + 6 = 48

48 * 3 + 9 = 153

153 * 4 + 12 = 624

624 * 5 + 15 = 3135

9) Answer: A

117 + (2² – 1) = 120

120 + (2³ – 3) = 125

125 + (2⁴ – 5) = 136

136 + (2⁵ – 7) = 161

161 + (2⁶ – 9) = 216

10) Answer: D

17 * 3 + 3 = 54

54 * 3 + 3 = 165

165 * 3 + 3 =498

498 * 3 + 3 = 1497

1497 * 3 + 3 = 4494

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