Average of 40 numbers 35. If 10 numbers average 40 added, new average? MCQ with Answer and Explanation

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Average of 40 numbers 35. If 10 numbers average 40 added, new average?

A. 37

B. 36

C. 35

D. 36.25

Answer: Option B

Solution (By JKExamLibrary)

Total40=1400. Added=400. Total1800/50=36.

This question belongs to: Maths Average

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Practice More Average Questions

Question #1 Report Error

Find the average of first 10 natural numbers.

A. 6.5

B. 5.5

C. 6

D. 5

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Correct Answer: Option B

Explanation:
Sum of first 10 natural numbers = 10×11/2 = 55. Average = 55/10 = 5.5.

This question belongs to: Maths Average

Question #2 Report Error

The average of 9 numbers is 27. If one number is 36, find the average of the remaining 8.

A. 25.875

B. 26.5

C. 25.5

D. 26

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Correct Answer: Option A

Explanation:
Sum=9×27=243. Remaining sum=243-36=207. Avg=207/8=25.875.

This question belongs to: Maths Average

Question #3 Report Error

The average marks of 25 students is 70. If the marks of one student were misread as 80 instead of 60, find the correct average.

A. 69.8

B. 69.2

C. 70.0

D. 68.8

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Correct Answer: Option B

Explanation:
Total sum misread =25×70=1750. Correct sum =1750 -80 +60 =1730. Correct average =1730/25=69.2.

This question belongs to: Maths Average

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