Free Online IBPS CWE Numerical Ability Mock Test 4 For Bank Exam Prelims and Mains of IBPS CWE PO, IBPS Clerk, IBPS RRB, SBI Clerk, SBI PO Exams.Aptitude.

46. The area of a rectangle is equal to the area of a circle with circumference equal to 220 meters. What is the length of the rectangle if its breadth is 50 meters?

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Answer: Option C

Explanation:

2πr = 220

=> 2 * 22/7 * r = 220

=> r = (220*7)/(2*22) = 35 metre

Area of circle = πr^{2}

= 22/7 * 35 * 35

= 3850 sq.metre

∴ Area of rectangle

= 3850 sq.metre

∴ Length = 3850/50 = 77 metre

47. Prashant incurred a loss of 75% on selling an article for Rs. 6,800. What was the cost price of the article?

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48. 2 women and 10 children together take 8days to complete a piece of work. How many days will 10 children alone take to complete the piece of work if 8 women alone can complete the piece of work in 6 days?

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Answer: Option B

Explanation:

8 women complete the work in 6 days.

Work done by 2 women in 8 days = ?

M_{1}D_{1}/W_{1} = M_{2}D_{2}/W_{2}

=> (8 * 6)/1 = (2 * 8)/ W_{2}

=> W_{2} = 2/6 = 1/3
∴ Remaining work

= 1- 1/3 = 2/3

∴ Work done by 10 children in 8 days = 2/3
∴ Time taken in completing the work = (8*3)/2
= 12 days

49. In how many different ways can the letters of the word "TROUBLE" be arranged?

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Answer: Option B

Explanation:

The word 'TROUBLE' consists of 7 distinct letters

∴ Required number of arrangements = 7!

= 7*6*5*4*3*2*1

= 5040

50. A man riding a bicycle, completes one lap of a circular field along its circumference at the speed of 73.2 kmph in 2 minutes 40 seconds. What is the area of the field ?

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Answer: Option A

Explanation:

Circumference of circular field = (79.2 * 5/18 * 160) metre

= 3520 metre

∴ 2πr = 3520

=> 2 * 22/7 * r = 3520

=> r = (3520*7)/(2*22) = 560 metre

∴ Area of the field

= πr^{2} = 22/7 * 560 * 560

= 985600 sq.metre