Average of 6 numbers 45. If average of 4 is 40, average of remaining 2? MCQ with Answer and Explanation

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Average of 6 numbers 45. If average of 4 is 40, average of remaining 2?

A. 60

B. 55

C. 52.5

D. 50

Answer: Option B

Solution (By JKSSB Mock Tests)

Sum6=270. Sum4=160. Remaining=110. Average=55.

This question belongs to: Maths Average

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Question #1

Average of 525,700,875 is

A. 690

B. 700

C. 695

D. 710

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Correct Answer: Option B

Explanation:
2100/3=700.

This question belongs to: Maths Average

Question #2

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

A. 35

B. 32

C. 28

D. 30

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Correct Answer: Option A

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

This question belongs to: Maths Average

Question #3

The average of 7 consecutive odd numbers is 15. What is the largest number?

A. 17

B. 23

C. 21

D. 19

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Correct Answer: Option C

Explanation:
In consecutive odd numbers, average = middle term. So 4th number =15, largest =15+6=21.

This question belongs to: Maths Average

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