Average of 15 numbers 1760. If average of 9 is 1755, average of remaining 6? MCQ with Answer and Explanation

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Average of 15 numbers 1760. If average of 9 is 1755, average of remaining 6?

A. 1770

B. 1765

C. 1768

D. 1767.5

Answer: Option D

Solution (By JKSSB Mock Tests)

Sum15=26400. Sum9=15795. Remaining=10605. Average=1767.5.

This question belongs to: Maths Average

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Question #1

Average of 1515,2020,2525 is

A. 2030

B. 2015

C. 2010

D. 2020

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Correct Answer: Option D

Explanation:
6060/3=2020.

This question belongs to: Maths Average

Question #2

Average weight of 40 students 45 kg. If 10 more with average 50 kg join, new average?

A. 46.25

B. 47

C. 45

D. 46

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Correct Answer: Option D

Explanation:
Total old=1800. New=500. Total 2300 for 50. Average=46.

This question belongs to: Maths Average

Question #3

The average of 4 numbers is 15. If one of the numbers is 10, what is the average of the remaining three?

A. 16.67

B. 17

C. 18

D. 16

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Correct Answer: Option A

Explanation:
Total sum = 4 × 15 = 60. Sum of remaining three = 60 - 10 = 50. Average = 50 / 3 ≈ 16.67.

This question belongs to: Maths Average

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