**Hello Aspirants,**

Welcome to Online Quant Section in AffairsCloud.com. We are starting **IBPS Clerk course 2015 **and we are creating sample questions in **Quantitative Aptitude** section, type of which will be asked in IBPS Clerk Main Exam.

**Stratus – IBPS Clerk Course 2015 **

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** Directions (1-5): Find out the wrong number in the series. **

**57, 58, 120, 357, 1432**

A) 357

B) 58

C) 120

D) 1432

E) None of these**C) 120**

Explanation:

It should be 118

Series moving as:

*1 + 1, *2 + 2, *3 + 3, …**7, 13, 27, 53, 106, 213, 427**

A) 53

B) 106

C) 27

D) 213

E) None of these**B) 106**

Explanation:

Series moving as:

*2 – 1, *2 + 1, *2 – 1, *2 + 1,…**6, 15, 35, 77, 160, 337**

A) 77

B) 35

C) 337

D) 160

E) None of these**D) 160**

Explanation:

Series moving as:

*2 + 3, *2 + 5, *2 + 7, *2 + 9,…**264, 792, 3165, 15840, 95040**

A) 792

B) 3165

C) 15840

D) 95040

E) None of these**B) 3165**Explanation:

Series moving as:

*2, *3, *4, *5, …**100, 221, 265, 315, 365, 424**

A) 424

B) 265

C) 315

D) 365

E) None of these**C) 315**

Explanation:

10^2, 10^2 + 11^2, 11^2 + 12^2, 12^2 + 13^2,….**The perimeter of a rectangle is half the circumference of circle whose area is 3850 cm**^{2}. If the breadth of rectangle is 30 cm, find its area.

A) 685 cm^{2}

B) 710 cm^{2}

C) 732 cm^{2}

D) 750 cm^{2}

E) None of these**D) 750 cm**^{2}

Explanation:

Shortcut-

ᴨr^{2}= 3850, so r = 35

now perimeter of rect. = (1/2)*2ᴨr = 110

so 2(l+30) = 110, so l = 25

area = 25*30**There are 2 mixtures of milk and water such that mixture P contains 30% water and mixture Q contains 20% water. Equal quantities of both mixtures are taken and put in a bottle. What is the ratio of milk to water in the bottle?**

A) 3 : 5

B) 3 : 1

C) 5 : 2

D) 2 : 7

E) 9 : 2**B) 3 : 1**

Explanation:

Let x litres taken from both, so milk : water in bottle

70% of x + 80% of x : 30% of x + 20% of x**The person has expenditure of Rs 6,000 in a month with his salary being Rs 10,000. The next month his salary increases by 10% and expenditure by 20%. What is the % change in the his savings?**

A) 6.2% increase

B) 5.26% decrease

C) 5.02% increase

D) 5% decrease

E) None of these**D) 5% decrease**

Explanation:

Savings = 10,000 – 6000 = 4000

Income becomes = (110/100)*10,000 = 11,000

Exp. becomes = (120/100)*6,000 = 7,200

So savings now = 11000 – 7200 = 3800

So % decrease in savings = (4000-3800)/4000 * 100 = 5%**After getting two successive discounts, an article which was marked at Rs 750 was bought for Rs 540. The first discount was 20%. What is the second discount being given?**

A) 30%

B) 17%

C) 25%

D) 10%

E) None of these**D) 10%**

Explanation:

750*80/100*x/100 = 540

x = 540*100*100/80*750

x = 90 then % = 100-90 = 10%**30 men who can complete a work in 16 days started the work and after working for 6 days, 10 more men joined. In how many days the remaining work will be completed?**

A) 6

B) 10 2/3

C) 8

D) 7 1/3

E) 7 1/2**E) 7 1/2**

Explanation:

30 m in 16 days, so (30+10)=40 men in (30*16)/40 = 12 days

So

(1/16)*6 + (1/12)*x = 1

Solve, x = 7.5 days

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