# Crack IBPS Exam 2017 – Quantitative Aptitude Scoring Part (Day-9)

Crack IBPS Exam 2017 – Quantitative Aptitude Scoring Part (Day-9):

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”.

Here in Scoring Part we are providing 10 Questions in simplification, 10 Questions in Approximation, 5 Questions in number Series and 5 Questions in Quadratic Equations, total 30 questions in 20 Minutes. By practicing these questions regularly you can increase your calculation speed and it will help you to increase your score.

00:00:00

Direction (1-10): What value should come in place of question mark (?) in the following questions?
1). 321 × 9 ÷ 0.8 = √? × 11.25

103037
103039
103041
103043
103045

√? = 321 × 9 / (0.8 × 11.25) = 321
? = (321)^2
? = 103041

2. 78.54 ÷ 0.03 + 22.8 ÷ 0.8 - 1470 × 1.25 = ?

809
807.5
805
802.5
801
? = 2618 + 28.5 - 1837.5
? = 809

3. 44% of 475 + 72% of 55 = 12.5% of ?

1978.6
1982.5
1988.8
1990
1992.2
12.5 × ? / 100 = 44 × 475 /100 + 72 × 55 / 100
12.5 × ? / 100 = 209 + 39.6 = 248.6
? = 24860 / 12.5 = 1988.8

4. (³√7)^1/2 ÷ (343)^-1/2 × (³√7)^2 = (³√7)^?

3
7
9
-2
-3
(³√7)^1/2 ÷ (73)^(-1/2) × (³√7)^2 = (³√7)^?
(7)^(1/6) ÷ (7)^(-3/2) × (7)^(2/3) = (7)^(?/3)
(7)^( 1/6 + 3/2 + 2/3) = (7)^(?/3)
(7)^(14/6) = (7)^(?/3)
(7)^(7/3) = (7)^(?/3)
? = 7

5). 8 5/8 × 3 3/23 + 7 1/5 × 4 2/9 = ?

51 2/5
57 2/7
53 2/5
55 2/7
57 2/5
? = 69 / 8 × 72 / 23 + 36 / 5 × 38 / 9
? = 27 + 152 / 5
? = (135 + 152) / 5 = 287 / 5
? = 57 2/5

6. 252 / ? = ? / 63

124
126
128
130
132
?^2 = 252 × 63
?^2 = 9 × 7 × 4 × 7 × 9
?^2 = (2 × 7 × 9)^2
? = 2 × 7 × 9 = 126

7. 3 / 7 of 504 ÷ 12 + 17 = √?

1225
1230
1235
1220
None of these
√? = 18 + 17 = 35
? = (35)^2 = 1225

8. 82 + 4 × 3.75 – 16 = √?

6361
6461
6561
6661
6761
√? = 82 + 15 - 16 = 81
? = (81)^2 = 6561

9. {5√27}^3 × 81 ÷ 1 / (3)^1/5 = 9^?

1
2
3
4
5
9^? = (27)^(3/5) × (3)^4 ÷ (3)^(-1/5)
9^? = (3)^((9/5) + 4 + (1/5)) = 3^6
9^? = 9^3
? = 3

10. 7.85% of 1240 + 3.6% of 850 = 20% of ?

633.5
635.8
637.4
639.7
641
20 × ? /100 = 7.85 × 1240 / 100 + 3.6 × 850 / 100
20 × ? /100 = 97.34 + 30.6 = 127.94
? = 12794 / 20
? = 639.7

Direction (11-20): What approximate value should come in place of question mark (?) in the following questions?
11.√4355 + 1204.04 / 6.978 × 14.95 = ?

2650
2550
2450
2350
2250
? ≈ 66 + 1204 / 7 × 15
? = 66 + 2580
? = 2646 ≈ 2650

12. 217% of 8458 = ?

18150
18350
18550
18750
18950
? = 217 × 8458 /100
? = 18353.86 ≈ 18350

13. √3020 × ? = 64400

1130
1150
1170
1190
1210
? ≈ 64400 / 55 = 1170.9 ≈ 1170

14. 45.145 + 13.92 × 15.05 + 148.08 ÷ 3.97 = ?

210
250
290
320
350
? = 45 + 14 × 15 + 148 ÷ 4
? = 45 + 210 + 37 = 292 ≈ 290

15. 148% of 1749 - 14.99 × 16.02 = ?

2150
2250
2350
2450
2550
? ≈ 148 × 1750 /100 – 15 × 16
? = 2590 - 240 = 2350

16. (0.00072 ÷ 0.000015) × 5.00005 = ?

130
190
240
280
310

? ≈ 48 × 5 = 240

17. 137% of 1285 = ?

1340
1510
1660
1760
1790
? = 137 × 1285 / 100
? = 1760.45 ≈ 1760

18. √2300 = ?

42
44
46
48
39
(48)^2 = 2304
Therefore, √2300 ≈ 48

19. 3.068% of 798 + 5.958% of 1089 = ?

75
90
110
60
125
? ≈ 3 × 800 / 100 + 6 × 1100 / 100
? = 24 + 66 = 90

20. 13.023 × 102.68 + 197.68 × 12.05 = ?

3500
3600
3700
3800
3900
? ≈ 13 × 103 + 198 × 12
? = 1339 + 2376 = 3715 ≈ 3700

Direction (21 – 25): What value should come in place of the question mark (?) in the following number series?21. 59.76, 58.66, 56.46, 52.06, ?, 25.66

48.08
46.53
43.46
43.26
None of these
The sequence in the series is - 1.1, - 2.2, - 4.4, - 8.8, - 17.6

22. 36, 157, 301, 470, ?, 891

646
695
639
669
None of these
The sequence in the series is +11^2, +12^2, +13^2, +14^2, +15^2, ….

23. 14, 70, 350, ?, 8750, 43750

1570
875
1750
785
None of these
23). Answer: c) The series is x 5, x 5, x 5, ……

24. 13, 13, 65, 585, 7605, 129285,?

2456415
2235675
2980565
2714985
2197845
The sequence in the series is x 1, x 5, x 9, x 13, x 17, x 21, ...
[Here, the difference between the multiplier is 4. i.e. 5 -1, 9 - 5, 13 - 9, 17 – 13,…]

25. 1, 16, 81, 256, 625, 1296, ?

4096
2401
1764
3136
6561
The series is, 1^4, 2^4, 3^4, 4^4, 5^4, 6^4, 7^4 (= 2401)

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 p is greater than q.
b) If p is smaller than q.
c) If p is equal to q.
d) If p is either equal to or greater than q.
e) If p is either equal to or smaller than q.

26. I. 6p^2 + 5p + 1 = 0
II. 20q^2 + 9q = - 1

a)
b)
c)
d)
e)
I. 6p^2+5p+1=0
(3p+1)(2p+1)=0
p = -1/3,-1/2
II. 20q^2+9q+1=0
(4q+1)(5q+1)=0
q = -1/4, -1/5
∴p< q

27.I. 3p^2 + 2p – 1 = 0
II. 2q^2 + 7q + 6 = 0

a)
b)
c)
d)
e)
I. 3p2+2p-1=0
(3p-1)(p+1)=0
p = 1/3, -1
II. 2q^2+7q+6=0
(2q+3)(q+2)=0
q = -3/2, -2
∴p> q

28. I. 3p^2 + 15p = - 18
II. q^2 + 7q + 12 = 0

a)
b)
c)
d)
e)
I. 3p^2+15p+18=0
(3p+6)(p+3)=0
p = - 2, - 3
II. q^2+7q+12=0
(q+4)(q+3)=0
q = - 3, - 4
∴p ≥ q

29. I. p = √4 /√9
II. 9q^2 - 12q + 4 = 0

a)
b)
c)
d)
e)
I. p = √4 / √9 = 2/3
II. 9q^2-12q+4=0
(3q-2)^2=0
q = 2/3, 2/3
∴p = q

30.I. p^2 + 13p + 42 = 0
II. q^2 = 36

a)
b)
c)
d)
e)