Average of 8 numbers 2250. If average of 5 is 2245, average of remaining 3? MCQ with Answer and Explanation

Average of 8 numbers 2250. If average of 5 is 2245, average of remaining 3?

A. 2255

B. 2260

C. 2257

D. 2258.33

Answer: Option D

Sum8=18000. Sum5=11225. Remaining=6775. Average≈2258.33.

This question belongs to: Maths Average

No comments yet. Be the first to start the discussion!

Question #1 Report Error

The average of 5 numbers is 38. If each number is multiplied by 2 and then 5 is subtracted, what is the new average?

A. 76

B. 66

C. 71

D. 81

Correct Answer: Option C

Explanation:
New average = (38×2) -5 =76-5=71.

This question belongs to: Maths Average

Question #2 Report Error

Average of 10 numbers 1280. If average of 6 is 1275, average of remaining 4?

A. 1286

B. 1287.5

C. 1290

D. 1285

Correct Answer: Option B

Explanation:
Sum10=12800. Sum6=7650. Remaining=5150. Average=1287.5.

This question belongs to: Maths Average

Question #3 Report Error

The average of 8 numbers is 26. If one number is 30, find the average of the remaining 7.

A. 25.43

B. 24.86

C. 25.5

D. 26

Correct Answer: Option A

Explanation:
Sum=8×26=208. Remaining sum=208-30=178. Avg=178/7=25.43.

This question belongs to: Maths Average