Average of first 5 prime numbers is MCQ with Answer and Explanation

Average of first 5 prime numbers is

A. 5

B. 7

C. 5.6

D. 6

Answer: Option C

2+3+5+7+11=28. 28/5=5.6.

This question belongs to: Maths Average

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Question #1 Report Error

Average of 8 numbers 200. If average of 5 is 195, average of remaining 3?

A. 205

B. 208.33

C. 207

D. 210

Correct Answer: Option B

Explanation:
Sum8=1600. Sum5=975. Remaining=625. Average≈208.33.

This question belongs to: Maths Average

Question #2 Report Error

Average of 12 numbers 2570. If average of 8 is 2565, average of remaining 4?

A. 2575

B. 2578

C. 2580

D. 2582

Correct Answer: Option C

Explanation:
Sum12=30840. Sum8=20520. Remaining=10320. Average=2580.

This question belongs to: Maths Average

Question #3 Report Error

If average of 20 numbers is 30 and 10 numbers average 25, average of remaining 10?

A. 30

B. 40

C. 35

D. 32.5

Correct Answer: Option C

Explanation:
Sum20=600. Sum10=250. Remaining=350. Average=35.

This question belongs to: Maths Average