Average of 9 numbers 1740. If average of 6 is 1735, average of remaining 3? MCQ with Answer and Explanation

Average of 9 numbers 1740. If average of 6 is 1735, average of remaining 3?

A. 1745

B. 1755

C. 1750

D. 1748

Answer: Option C

Sum9=15660. Sum6=10410. Remaining=5250. Average=1750.

This question belongs to: Maths Average

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Question #1 Report Error

The average age of 4 boys is 16 years. If their ages are in ratio 1:2:3:4, what is the age of the oldest boy?

A. 28

B. 24

C. 26

D. 25.6 years

Correct Answer: Option D

Explanation:
Sum =4×16=64. Ratio sum=10. Oldest = (4/10)×64 =25.6.

This question belongs to: Maths Average

Question #2 Report Error

The average of 1170,1560,1950 is

A. 1560

B. 1555

C. 1550

D. 1570

Correct Answer: Option A

Explanation:
4680/3=1560.

This question belongs to: Maths Average

Question #3 Report Error

Average of 12 numbers 1620. If average of 8 is 1615, average of remaining 4?

A. 1625

B. 1632

C. 1630

D. 1628

Correct Answer: Option C

Explanation:
Sum12=19440. Sum8=12920. Remaining=6520. Average=1630.

This question belongs to: Maths Average