Free Online IBPS CWE Numerical Ability Mock Test 9 For Bank Exam Prelims and Mains of IBPS CWE PO, IBPS Clerk, IBPS RRB, SBI Clerk, SBI PO Exams.Aptitude.

31. What will be the average of following set of scores ?
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69, 89, 34, 76, 54, 68, 28, 46

Answer: Option E

Explanation:

Required average =

(69 + 89 + 34 + 76 + 54 + 68 + 28 + 46)/8

= 464/8

= 58

32. What will be the resultant if the square of 109 is subtracted from the square of 210 ?

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Answer: Option E

Explanation:

Required answer

= (210)^{2} - (109)^{2}

= (210 + 109) (210 - 109)

= (319)(101) = 32219

33. What will be the compound interest accrued on a principal of Rs. 32,500 at the rate of 5 p.c.p.a. after a period of 2 years.

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Answer: Option D

Explanation:

C.I = P[(1 + R/100)^{T} - 1 ]

= 32500[(1 + 5/100)^{2} - 1]

= 32500[(21/20)^{2} - 1]

= 32500 * 41/400 = Rs. 3331.25

34. The average of five numbers is 50.8. The average of the first and the second numbers is 29. The average of the fourth and the fifth numbers is 66.5. What is the third number?

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Answer: Option E

Explanation:

Third number = 5 * 50.8 - 29 * 2 - 66.5 * 2

= 254 - 58 - 133 = 63

35. A train covers 430 km in 5 hours. The speed of a bike is half the speed of the train. How much time will the bike take to cover a distance of 301 km ?

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Answer: Option B

Explanation:

Speed of train = Distance travelled/Time spent

= 430/5

= 86 km/hr

Speed of bike = 86/2 = 43km/hr.

Time taken by bike to cover a distance of 301 km

= Distance/Speed = 301/43 = 7 hours.