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? MCQ with Answer and Explanation

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. 56 kg

B. 58 kg

C. 60 kg

D. 62 kg

Answer: Option C

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

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Question #1 Report Error

A shopkeeper sold 12 pens at Rs. 15 each. Average selling price of all pens if he sold 8 more at Rs. 12 each?

A. 14

B. 13.5

C. 13

D. 13.8

Correct Answer: Option D

Explanation:
Total revenue = 12×15 + 8×12 = 180 + 96 = 276. Total pens=20. Average=276/20=13.8.

This question belongs to: Maths Average

Question #2 Report Error

Average of 8 numbers 1900. If average of 5 is 1895, average of remaining 3?

A. 1905

B. 1908.33

C. 1910

D. 1907

Correct Answer: Option B

Explanation:
Sum8=15200. Sum5=9475. Remaining=5725. Average≈1908.33.

This question belongs to: Maths Average

Question #3 Report Error

Average of 65,130,195 is

A. 140

B. 125

C. 130

D. 120

Correct Answer: Option C

Explanation:
390/3=130.

This question belongs to: Maths Average