If the average of a,b,c,d is 30 and average of a,b is 25, average of c,d is MCQ with Answer and Explanation

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If the average of a,b,c,d is 30 and average of a,b is 25, average of c,d is

A. 28

B. 35

C. 30

D. 32

Answer: Option B

Solution (By JKExamLibrary)

a+b+c+d =120. a+b=50. c+d=70. Average c,d =35.

This question belongs to: Maths Average

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Practice More Average Questions

Question #1 Report Error

The average of all numbers from 1 to 60 divisible by 5 is

A. 30

B. 25

C. 32.5

D. 35

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Correct Answer: Option C

Explanation:
5 to 60. 12 numbers. Average 5*(1+12)/2=32.5.

This question belongs to: Maths Average

Question #2 Report Error

Average of 10 numbers 2130. If average of 6 is 2125, average of remaining 4?

A. 2135

B. 2140

C. 2136

D. 2137.5

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Correct Answer: Option D

Explanation:
Sum10=21300. Sum6=12750. Remaining=8550. Average=2137.5.

This question belongs to: Maths Average

Question #3 Report Error

Average of 10 numbers 1680. If average of 6 is 1675, average of remaining 4?

A. 1686

B. 1690

C. 1685

D. 1687.5

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Correct Answer: Option D

Explanation:
Sum10=16800. Sum6=10050. Remaining=6750. Average=1687.5.

This question belongs to: Maths Average

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