## 28 Jun 2017

### Crack IBPS Exam 2017 - Quantitative Aptitude Scoring Part (Day-15)

Crack IBPS Exam 2017 - Quantitative Aptitude Scoring Part (Day-15):
Dear Readers, Nowadays most of the aspirants are facing huge trouble to increase the overall marks. To score high you need to practice more and more standard questions daily. “Practice does not make perfect, Only Perfect Practice makes perfect”.

00:00:00

Direction (1-10): What value should come in place of question mark (?) in the following questions?
1). 24.5% of 48 + 8.4% of 125 = ?% of 139.125
12
14
16
18
20
1). Answer: c)
? × 139.125 / 100 = 24.5 × 48 / 100 + 8.4 × 125 / 100
? × 139.125 / 100 = 11.76 + 10.5
? = 22.26 × 100 / 139.125 = 16
2. (24.84 ÷ ?) / (0.2 × 0.03) = 300
11.2
13.8
14.5
16
18.8
2). Answer: b)
24.84 / ? = 300 × 0.2 × 0.03 = 1.8
? = 24.84 / 1.8 = 13.8
3. 8/13 of 7/3 of 12.5% of 13728 = 320% of ?
748
756
764
770
780
3). Answer: d)
320 × ? / 100 = 8 × 7 × 12.5 × 13728 / (13 × 3 × 100) = 2464
? = 2464 × 100 / 320 = 770

4. (1296)^3.8 × (216)^(-4) ÷ 1 / 7776 = (36)^?
3.2
4.1
4.8
5.6
2.8
4). Answer: b)
(6^4)^3.8 × (6^3)^(–4) ÷ 1 / (6)^5 = (36)^?
(6)^15.2 × (6)^(-12) (6)^(–5) = (36)^?
(36)^? = (6)^(15.2 - 12 + 5) = (6)^8.2 = (36)^4.1
? = 4.1

5). √6084 ÷ ³√2197 = ³√?
64
125
216
343
512
5). Answer: c)
³√? = 78 ÷ 13 = 6
? = (6)^3 = 216

6. (1089)^2.8 ÷ (33)^(-3.4) × 1/35937 = (1089)^?
1
2
3
4
5
6). Answer: c)
(33^2)^2.8 ÷ (33)^(-3.4) × 1/ (33)^3 = 1089^?
or, (33)^5.6 ÷ (33)^(-3.4) × (33)^(-3) = (1089)^?
or, (33)^(5.6 + 3.4 – 3) = (1089)^?
or, (33)^6 = (1089)^?
or, (1089)^3 = 1089^?
? = 3

7. 1.4641 ÷ 0.0011 = ?
1
11
121
1331
14641
7). Answer: d)
? = 1.4641 / 0.0011
? = 14641 / 11 = 1331

8. 3.6% of 180 + 2.4% of 555 = ?% of 49.5
40
60
80
100
120
8). Answer: a)
? × 49.5 / 100 = 3.6 × 180 / 100 + 2.4 × 555 / 100
? × 49.5 / 100 = 6.48 + 13.32 = 19.8
? = 19.8 × 100 / 49.5 = 40
9. 7/9 of 4/3 of 78% of 4950 = ?
4004
4008
4012
4016
4020
9). Answer: a)
? = 7 × 4 × 78 × 4950 /(9 × 3 × 100)
? = 4004

10. 7.25 × 244 – 2.75 × 148 = 1.2 × ?
1125
1135
1145
1155
1165
10). Answer: b)
? = (7.25 × 244 – 2.75 × 148) / 1.2
? = (1769 – 407) / 1.2
? = 1362 / 1.2 = 1135

Direction (11-20): What approximate value should come in place of question mark (?) in the following questions?
11.16.5% of 1399.921 + 114.78% of 1211 = ?
1270
1350
1490
1530
1610
11). Answer: e)
? ≈ 16.5 × 1400 / 100 + 115 × 1200 / 100
? = 231 + 1380
? = 1611 ≈ 1610

12. √1220 × 16.06 + √4897 = ?
610
620
630
640
650
12). Answer: c)
√1220 ≈ 35
√4897 ≈ 70
? ≈ 35 × 16 + 70 = 560 + 70
? = 630
13. 18.08 × 11.898 + 22.922 × 14.94 = ?
520
560
540
580
610
13). Answer: b)
? ≈ 18 × 12 + 23 × 15 = 216 + 345
? = 561 ≈ 560
14. (2284.85 ÷ 4.985 +17.126) ÷ 6.06 = ?
61
65
69
75
79
14). Answer: e)
? ≈ (2285 ÷ 5 + I7) ÷ 6
? = (457 + 17) ÷ 6 = 79
15. (445905 ÷ 981) + (1618 ÷ 64.8) = ?
450
60
470
480
490
15). Answer: d)
? ≈ (445900 ÷ 980) + (1625 ÷ 65)
? = 455 + 25 = 480
16. {(5.75)^2 × 4.996} ÷ 11.04 = ?
5
15
25
35
45
16). Answer: b)
? ≈ 33 × 5 / 11 = 15
17. 85% of 489.96 + 73% of 849.98 = ?
1015
1025
1035
1045
1055
17). Answer: c)
? ≈ 85 × 490 / 100 + 73 × 850 / 100
? = 416.5 + 620.5
? = 1037 ≈ 1035
18. 24.03 × 18.96 - 7.25 × 43.98 + 12.98 = ?
150
175
200
225
250
18). Answer: a)
? ≈ 24 × 19 - 7.25 × 44 + 13
? = 456 - 319 + 13 = 150

19. (644.96 ÷ 14.95 +1.98) × 15.966 = ?
600
720
850
975
1020
19). Answer: b)
? ≈ {(645 ÷ 15) + 2} × 16 = 720

20.22.22 × 33.3 × 0.44 = ?
310
315
320
325
330
20). Answer: d)
? = 22.22 × 33.3 × 0.44 = 325.567
? ≈ 325
Direction (21 – 25): In the following number series only one number is wrong. Find out the wrong number. 21. 1953.125, 781.25, 312.5, 125, ?, 20
48
49
50
51
52
21). Answer: c)
The series is,
1953.125/2.5=781.25
781.25/2.5=312.5
312.5/2.5=125
125/2.5=50
50/2.5=20

22. 81, 87, 162, 504, 1992, 9990, ?
59903
59906
56895
59904
59861
22). Answer: d)
The difference between numbers is x 1+6 , x 2-12, x 3+18 ,x 4-24 ,x 5+30 , x 6-36

23. 49, 72, 118, ?, 394, 762, 1498
234
239
210
219
243
23). Answer: c)
The difference between numbers is +23 , +46 , +92 , +184 , +368 ,+736
24. 142, 143, 156, 193, 272, 417, ?
653
658
659
657
656
24). Answer: b)
The difference between numbers is +1³+0 , +2³+5 ,+3³+10 , +4³+15 , +5³+20 ,+6³+25

25. 118, 122, 140, 188, 288, 468, ?
756
753
762
765
767
25). Answer: c)
The difference between numbers is +2³-2², +3³-3², +4³-4², +5³-5², +6³-6², +7³-7²

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) Relationship between x and y cannot be established
26. I. 9x^2 - 51x - 18 = 0
II. 7y^2 – 61y – 18 = 0

a)
b)
c)
d)
e)
26). Answer: e)
I. 9x^2 - 51x - 18 = 0
x = – (54/9) , 3/9
x = 6, -(1/3)
II. 7y^2 – 61y – 18 = 0
y = - (63/7), (2/7)
y = 9, - (2/7)
Hence relation can’t be established.

27.I. 4x^2 - 3x - 27 = 0
II. 6y^2 – 83y + 27 = 0

a)
b)
c)
d)
e)
27). Answer: e)
I. 4x^2 - 3x - 27 = 0
x = -(12/4), (9/4)
x = 3, -(9/4)
II. 6y^2 – 83y + 27 = 0
y = (81/6) , (2/6)
y = (27/2), (1/3)
Hence no relation can be established.
28. I. 21x - 4y = 140
II. 9x – 8y = 148

a)
b)
c)
d)
e)
28). Answer: c)
21x – 4y = 140 …(i)
9x – 8y = 148 …(ii)
Solving eqn (i) and (ii) we get
[ 42x – 8y = 280 ] – [ 9x – 8y = 148]
33x = 132
x = 4
Putting the value of x in equation (i), we get
84 – 4y = 140
Or, -4y = 56
Y = -(56/4) = -14
Hence x > y
29. I. 3^(x-y) = 243
II. 3^(x+y) = 27

a)
b)
c)
d)
e)
29). Answer: c)
I. 3^(x-y) = 243
3^(x-y) = 3^5
x – y = 5 …(i)
II. 3^(x+y) = 27
3^(x+y) = 3^3
x + y = 3 …(ii)
By adding (i) and (ii), we get
(x – y = 5) + (x + y = 3)
2x = 8
x = 8/2 = 4
Putting the value of x in equation (i), we get
4 – y = 5
or, -y = 5 – 4 = 1
or , y = -1
Hence x > y
30. I. 8x^2+ 27x+ 22 = 0
II. 4y^2 – 25y -56 = 0

a)
b)
c)
d)
e)
30). Answer: e)
I. 8x^2+ 27x+ 22 = 0
x = (16/8), (11/8)
x = -2, -(11/8)
II. 4y^2 – 25y -56 = 0
y = - (32/4), (7/4)
y = 8, -(7/4)
Hence no relation can be established.

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