Average of 16 numbers 35. If average of 12 is 32, average of remaining 4? MCQ with Answer and Explanation

Average of 16 numbers 35. If average of 12 is 32, average of remaining 4?

A. 40

B. 45

C. 42

D. 44

Answer: Option D

Sum16=560. Sum12=384. Remaining=176. Average=44.

This question belongs to: Maths Average

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Question #1 Report Error

The average weight of 8 students is 42 kg. If a new student joins, the average becomes 44 kg. What is the weight of the new student?

A. 58 kg

B. 62 kg

C. 56 kg

D. 60 kg

Correct Answer: Option D

Explanation:
Sum of 8 =8×42=336. Sum of 9 =9×44=396. New student's weight =396-336=60.

This question belongs to: Maths Average

Question #2 Report Error

The average weight of 20 students is 50 kg. If the teacher's weight is added, the average becomes 52 kg. Find the teacher's weight.

A. 94 kg

B. 90 kg

C. 88 kg

D. 92 kg

Correct Answer: Option D

Explanation:
Total weight of 20 = 20×50=1000. Total of 21 =21×52=1092. Teacher's weight =1092-1000=92.

This question belongs to: Maths Average

Question #3 Report Error

Average of 915,1220,1525 is

A. 1215

B. 1220

C. 1230

D. 1210

Correct Answer: Option B

Explanation:
3660/3=1220.

This question belongs to: Maths Average