# Quantitative Aptitude for IBPS PO Prelims Exam: 19th August 2018

**Dear students,**

**Numerical Ability or Quantitative Aptitude**Section has given

**heebie-jeebies**to the aspirants when they appear for a banking examination. As the level of every other section is only getting complex and convoluted, there is no doubt that this section, too, makes your blood run cold. The questions asked in this section are calculative and very time-consuming. But once dealt with proper strategy, speed, and accuracy, this section can get you the maximum marks in the examination. Following is the

**Quantitative Aptitude quiz**to help you practice with the best of latest pattern questions.

**Directions (1- 5): What will come in place of the question mark (?) in the following number series?**

**Q1. 8, 14, 32, 58, 124, (?)**

248

247

237

238

224

Solution:

The pattern is : ×2-2,×2+4,×2-6,×2+8……….
Required no- 238

**Q2. 25, 41, 89, 169, 281, (?)**

425

415

409

419

435

Solution:

The pattern is :
25 + 1 × 16 = 41
41 + 3 × 16 = 41 + 48 = 89
89 + 5 × 16 = 89 + 80 = 169
169 + 7 × 16 = 169 + 112 = 281
281+9 × 16 = 281 + 144 = 425

**Q3. 461 474 465 478 469 (?)**

460

482

456

478

496

Solution:

The pattern is :
461 + 13 = 474
474 - 9 = 465
465 + 13 = 478
478 - 9 = 469
469+13 = 482

**Q4. 980, 516, 284, 168, 110, (?)**

73

71

83

91

81

**Q5. 4, 5, 8, 27, 104, (?)**

530

514

520

509

525

Solution:

The pattern is: ×1+1,×2-2,×3+3,×4-4……….

**Q6. Out of his total income, Mr. Kapur spends 20% on house rent and 70% of the rest on house hold expenses. If he saves Rs 1,800 what is his total income (in rupees)?**

Rs 7,800

Rs 7,000

Rs 8000

Rs 7,500

None Of These

Solution:

Saving % = 100 – (20 + 56) = 24%
24% = 1800
100% = 1800/24×100 = 7500 Rs.

**Q7. There are 81 litres pure milk in a container. One-third of milk is replaced by water in the container. Again one-third of mixture is extracted and equal amount of water is added. What is the ratio of milk to water in the new mixture?**

1 : 2

1:1

2:1

4:5

3:2

Solution:

quantity of milk after two operations
= 81 × (1 –27/81)^2= 36 litre
Required Ratio = 36:45 = 4 : 5

**Q8. Ashok and Mohan can do a piece of work in 12 days. Mohan and Binod together do it in 15 days. If Ashok is twice as good a workman as Binod. In how much time will Mohan alone can do the work?**

15 days

20 days

25 days

35 days

40 days

Solution:

**Q9. 12 men complete a work in 18 days. 6 days after they had started working, 4 men join them. How many more days will all of them take to complete the remaining work?**

10 days

12 days

15 days

9 days

16 days

Solution:

12 × 18 = 12 × 6 + 16 × x
x = 144/16 = 9 days

**Q10. Out of the three given numbers, the first number is twice the second and thrice the third. If the average of the three numbers is 154, what is the difference between the first and their third number?**

126

42

166

52

168

Solution:

Let First no = x
Second no = x/2
Third no = x/3
Given x + x/2 + x/3=154×3
x = 252
Required difference = x – x/3=168

**Direction (11-15): What will come in place of ‘?’ in the following questions. Q11. 3/8 of 168×15÷5+?=549÷9+235**

163

199

107

126

136

Solution:

(63×15)/5+?=61+235
?=296-189=107

**Q12. 11×3^4+1/? of 385-1698÷6=685**

5

4

8

6

9

Solution:

11×81+1/? of 385 – 283 = 685
1/?of 385 =685+283-891
?=385/77=5

**Q13. (?)^2-364÷7×6+289=26×(121+72)**

95

89

83

71

None of these

Solution:

(?)^2-312+289=5018
(?)^2=5041,?=71

**Q14. 1/(4913)^(1/3) of 1411+583×?=16 2/3% of 14490**

5

6

7

8

4

Solution:

1411/17+583×?=2415
?=2332/583=4

**Q15. 14 2/7% of 27048 ÷ √576=(?)^(1/2)**

25571

25921

25252

25481

24481

Solution:

3864/24=(?)^(1/2)
161=(?)^(1/2),?=(161)^2=25921