The average of 2 numbers is 15. If one number is 10, what is the other? MCQ with Answer and Explanation

The average of 2 numbers is 15. If one number is 10, what is the other?

A. 5

B. 20

C. 25

D. 15

Answer: Option B

Sum =2×15=30. Other =30-10=20.

This question belongs to: Maths Average

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Question #1 Report Error

Average of 9 numbers 590. If average of 6 is 585, average of remaining 3?

A. 605

B. 595

C. 600

D. 598

Correct Answer: Option C

Explanation:
Sum9=5310. Sum6=3510. Remaining=1800. Average=600.

This question belongs to: Maths Average

Question #2 Report Error

The average of 24,36,48,60 is

A. 40

B. 45

C. 39

D. 42

Correct Answer: Option D

Explanation:
168/4=42.

This question belongs to: Maths Average

Question #3 Report Error

Average of 15 numbers 1260. If average of 9 is 1255, average of remaining 6?

A. 1265

B. 1267.5

C. 1268

D. 1270

Correct Answer: Option B

Explanation:
Sum15=18900. Sum9=11295. Remaining=7605. Average=1267.5.

This question belongs to: Maths Average