Crack IBPS Exam 2017 - Quantitative Aptitude Scoring Part (Day-13)

Crack IBPS Exam 2017 - Quantitative Aptitude Scoring Part (Day-13):

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Direction (1-10): What value should come in place of question mark (?) in the following questions?

1). {(247.4)^² – (112.6)^²} × (80)^^{- 2} = ?

(1) 7.5825

(2) 8.6025

(3) 12.8540

(5) None of these

2). {11.8% of 4450 + 22.5% of 1680} × 40 = ?

3). 7/15 of 12/11 of 1/5 of 7425 = ?% of 5400

4). 735 / ? = ? / 135

5). (1085)^² = (10)^⁶ + ?

(1) 165725

(2) 177225

(3) 178455

(4) 186245

(5) None of these

6). ? ÷ 0.5 × 24 = 5652

(1) 171.75

(2) 117.25

(3) 171.25

(4) 117.75

(5) None of these

7). 5 × ? = 4808 ÷ 8

(5) None of these

8). 65% of 654 - ?% of 860 = 210.1

(5) None of these

9). 35154 - 20465 - 5201 = ?

(5) None of these

10). 8/13 ÷ 192 / 559 =?

(1) 1 19/24

(2) 4 19/28

(3) 2 17/28

(4) 3 17/2

(5) None of these

Direction (11-20): What approximate value should come in place of question mark (?) in the following questions?

11).  ³√54870 × √1220 = ?

12). (445% of 336) ÷ 4.98 = ?

13). (8754 ÷ 6.05) × 4.98 = ?

(5) None of these

14). 185% of 1240 + 62.002 × 14.995 = ?

15). 548.78 ÷ 10.99 × 8.48 = ?

16). √6890 + ³√50650 = ?

17). (669.76 + 29.96 × 35.05) ÷ 6.04 = ?

18). (44.99)^² ÷ 7.538 = ?

19). 228% of 450 + 84% of 844.98 -1116 = ?

20). 361 × 5.96 × ? = 15227

Direction (21 – 25): What will come in place of question mark (?) in the following number series?

21). 7 , 5 , 7 ,17 , 63, ?

22). 50 , ? , 61 , 89, 154 , 280

23). 17, 19 , 25 , 37 , ? , 87

24). 11, 14, 19, 28, 43, ?

25). 26, 144, 590, 1164, ?

Direction (26-30): In each of these questions, two equations (I) and (II) are given. You have to solve both the equations and given answer:

a)    If x > y

b)    If x < y

c)    If x ≥ y

d)    If x ≤ y

e)    If x = y or no relation can be decided between 'x' and 'y'.

26).  I. x = (-7)^²

II. y^² - 46y - 147 = 0

27).  I. 4x^² - x - 3 = 0

II. 4y^² - 16y + 15 = 0

28). I. 2x^² - 117x + 1701 = 0

II. y = √992.25

29). I. 12x^² - 41x + 35 = 0

II. 3y^² - 17y - 28 = 0

30). I. 4x - 3y = 16

II. 7x - 8y = 17

Answers & Explanations:

1). Answer: a)

? = (80)^-2 × {(247.4 + 112.6) (247.4 - 112.6)}

? = (80)^-2 × {360 × 134.8}

? = 48528 / 6400 = 7.5825

2). Answer: e)

? = {11.8 × 4450 / 100 + 22.5 × 1680 / 100} × 40

? =  {525.1 + 378} × 40

? = 903.1 × 40 = 36124

3). Answer: b)

? /100 × 5400 = 7 × 12 × 7425 / (15 × 11 × 5)

? × 54 = 756

? = 756 / 54 = 14

4). Answer: e)

(?)² = 735 × 135 = (15 × 7 × 7) × (15 × 3 × 3)

or; ? ² = (15 × 7 × 3)²

 ? = 15 × 7 × 3 = 315

5). Answer: b)

(1085)² = (10)⁶ + ?

? = 1177225 – 1000000

? = 177225

6). Answer: d)

? = 5652 × 0.5 / 24 = 117.75

7). Answer: c)

? = 4808 / (8 × 5)

? = 4808 / 40

8). Answer: a)

65 / 100 × 654 - ? / 100 × 860 = 210.1

or, ? = (65 × 654 – 21010) / 860

or, ? = (42510 – 21010) / 860

? = 21500 / 860 = 25

9). Answer: a)

? = 35154 - 20465 - 5201

? = 35154 - 25666

10). Answer: a)

? = 8/13 × 559/192

? = 1 19/24

11). Answer: c)

? ≈ 38 × 35 = 1330

12). Answer: b)

? ≈ (445 × 336 / 100) ÷ 5

? ≈ 1495 ÷ 5

? = 299 ≈ 300

13). Answer: b)

? ≈ 8754/6 × 5 = 1459 × 5

? = 7295 ≈ 7300

14). Answer: c)

? ≈185% of 1240 + 62 × 15

? = 2294 + 930

? = 3224 ≈ 3225

15). Answer: e)

? ≈ 550 / 11 × 8.5 = 425

16). Answer: e)

? ≈ 83 + 37 = 120

17). Answer: b)

? = (670 + 30 × 35) ÷ 6

? = 1720 ÷ 6

? = 286.66 ≈ 290

18). Answer: c)

? ≈ 45 × 45 / 7.5 = 270

19). Answer: e)

? ≈ 228 × 450 / 100 + 84 × 845 / 100 – 1116

? = 1026 + 710 - 1116

? = 1736 - 1116 = 620

20). Answer: c)

? = 15227 / (360 × 6)

? = 15227 / 2166

? = 7.049 ≈ 7

21). Answer: c)

The series is,

7 x 1 – 2 = 5

5 x 2 – 3 = 7

7 x 3 – 4 = 17

17 x 4 – 5 = 63

63 x 5 – 6 = 309

22). Answer: a)

The series is,

50+(1³+1) = 52

52+(2³+1)=61

61+(3³+1)=89

89+(4³+1)=154

154 + (5³+1) = 280

23). Answer: c)

The series is,

17 + 1 x 2 = 19

19 + 2 x 3 = 25

25 + 3 x 4 = 37

37 + 4 x 5 = 57

57 + 5 x 6 = 87

24). Answer: e)

The difference of difference in the series is 2, 4, 6, 8

25). Answer: b)

The series is,

26 x 6 – 12 = 144

144 x 4 + 14 = 590

590 x 2 – 16 = 1164

1164 x 1 + 18 = 1182

26). Answer: c)

I. x = (-7)²

II. y² - 46y - 147 = 0

y² - 49y + 3y - 147 = 0,

y (y-49) + 3 (y - 49) = 0

(y - 49) (y + 3) = 0

y = 49, -3

27). Answer: b)  

I. 4 x² - x - 3 = 0

 4x² - 4x +3x - 3 = 0

 4 x (x - 1) + 3 (x - 1) = 0

(4x + 3) (x - 1) = 0

x = - 3/4, 1

II. 4y² - 16y + 15 = 0

4y² - 10y - 6y + 15 = 0

2y (2y – 5) –3 (2y - 5) = 0

(2y - 3) (2y - 5) = 0

y = 3/2, 5/2

28). Answer: d)  

I. 2x² - 117x + 1701

2x² - 54x - 63x + 1701

2x ( x - 27) -63 ( x - 27)

(2x - 63) ( x - 27) = 0

x = 27, 63/2

II. y = √(992.25)

29). Answer: e) 

I. 12x² - 41x + 35 = 0

12x² - 20x - 21x + 35 = 0,

4x (3x - 5) - 7 ( 3x - 5) = 0,

(4x - 7) (3x -5) = 0,

x = 7/4, 5/3

II. 3y² - 17y - 28 = 0

3y² - 21y +4y - 28= 0

3y ( y - 7) + 4 ( y – 7) = 0

( y -7) ( 3y + 4) = 0

y = 7, -4/3

ie. no relation between ‘x’ and ‘y’.

30). Answer: a) 

Equⁿ (I) × 7 - Equⁿ (II) × 4

(28x -  21y = 112)  -  (28x – 32y = 68)

y = 4,& from this x = 7

       

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