The average of 4 numbers is 16. If one number is 24, find the average of the other three. MCQ with Answer and Explanation

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The average of 4 numbers is 16. If one number is 24, find the average of the other three.

A. 13.33

B. 13

C. 12

D. 14

Answer: Option A

Solution (By JKSSB Mock Tests)

Sum=4×16=64. Other sum=64-24=40. Avg=40/3=13.33.

This question belongs to: Maths Average

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Question #1

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The average of 4 numbers is 21. If the average of first two numbers is 18, what is the average of the last two numbers?

A. 22

B. 21.5

C. 23

D. 24

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Correct Answer: Option D

Explanation:
Sum of all =4×21=84. Sum of first two =2×18=36. Sum of last two =84-36=48. Average of last two =48/2=24.

This question belongs to: Maths Average

Question #2

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Average of 12 numbers 770. If average of 8 is 765, average of remaining 4?

A. 775

B. 782

C. 780

D. 778

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Correct Answer: Option C

Explanation:
Sum12=9240. Sum8=6120. Remaining=3120. Average=780.

This question belongs to: Maths Average

Question #3

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Find the average of all numbers divisible by 5 between 10 and 30 (inclusive).

A. 20

B. 20.5

C. 17.5

D. 22.5

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Correct Answer: Option A

Explanation:
Numbers: 10,15,20,25,30 sum=100, count=5, avg=20.

This question belongs to: Maths Average

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