The average of 24,36,48,60 is MCQ with Answer and Explanation

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The average of 24,36,48,60 is

A. 45

B. 39

C. 40

D. 42

Answer: Option D

Solution (By JKSSB Mock Tests)

168/4=42.

This question belongs to: Maths Average

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Question #1

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Average of 9 numbers 2440. If average of 6 is 2435, average of remaining 3?

A. 2445

B. 2450

C. 2448

D. 2455

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Correct Answer: Option B

Explanation:
Sum9=21960. Sum6=14610. Remaining=7350. Average=2450.

This question belongs to: Maths Average

Question #2

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What is the average of the cubes of first 3 natural numbers?

A. 10

B. 18

C. 12

D. 14

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Correct Answer: Option C

Explanation:
Cubes:1,8,27 sum=36, avg=36/3=12.

This question belongs to: Maths Average

Question #3

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The average of 100 numbers is 50. The number 100 was misread as 10. Correct average?

A. 50.9

B. 51

C. 49

D. 50

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Correct Answer: Option A

Explanation:
Error -90. Increase 90/100=0.9. New=50.9.

This question belongs to: Maths Average

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