The average weight of 7 persons is 58 kg. If a person weighing 68 kg joins, what is the new average? MCQ with Answer and Explanation

The average weight of 7 persons is 58 kg. If a person weighing 68 kg joins, what is the new average?
A. 59.5 kg
B. 60 kg
C. 59.25 kg
D. 58.75 kg
Answer: Option C
Solution (By JKSSB Mock Tests)
Sum=7×58=406. New sum=406+68=474. New avg=474/8=59.25.

This question belongs to: Maths Average
Request complete Subject PDF

Discuss this Question (0)

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

Practice More Average Questions

Question #1
Find the average of the first 6 multiples of 3.
A. 11
B. 10.5
C. 9.5
D. 10

Correct Answer: Option B


Explanation:
Multiples:3,6,9,12,15,18 sum=63, count=6, avg=10.5.

This question belongs to: Maths Average
Question #2
Average of 10 numbers 1580. If average of 6 is 1575, average of remaining 4?
A. 1590
B. 1586
C. 1587.5
D. 1585

Correct Answer: Option C


Explanation:
Sum10=15800. Sum6=9450. Remaining=6350. Average=1587.5.

This question belongs to: Maths Average
Question #3
The average age of 5 children is 12. If parents average 40, average of all 7?
A. 25
B. 22
C. 18
D. 20

Correct Answer: Option D


Explanation:
Children total=60. Parents=80. Total=140. Average=20.

This question belongs to: Maths Average