Average of 10 numbers 530. If average of 6 is 525, average of remaining 4? MCQ with Answer and Explanation

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Average of 10 numbers 530. If average of 6 is 525, average of remaining 4?

A. 537.5

B. 535

C. 536

D. 540

Answer: Option A

Solution (By JKSSB Mock Tests)

Sum10=5300. Sum6=3150. Remaining=2150. Average=537.5.

This question belongs to: Maths Average

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Question #1

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The average marks of 25 students is 72. If a student with 60 marks leaves, what is the new average?

A. 72.5

B. 71.5

C. 72

D. 73

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Correct Answer: Option A

Explanation:
Sum=25×72=1800. New sum=1800-60=1740. New avg=1740/24=72.5.

This question belongs to: Maths Average

Question #2

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Average of 1515,2020,2525 is

A. 2015

B. 2020

C. 2010

D. 2030

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Correct Answer: Option B

Explanation:
6060/3=2020.

This question belongs to: Maths Average

Question #3

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The average of 63,72,81 is

A. 68

B. 72

C. 75

D. 70

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Correct Answer: Option B

Explanation:
216/3=72.

This question belongs to: Maths Average

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