Average of 15 numbers 1410. If average of 9 is 1405, average of remaining 6? MCQ with Answer and Explanation

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Average of 15 numbers 1410. If average of 9 is 1405, average of remaining 6?

A. 1417.5

B. 1418

C. 1420

D. 1415

Answer: Option A

Solution (By JKExamLibrary)

Sum15=21150. Sum9=12645. Remaining=8505. Average=1417.5.

This question belongs to: Maths Average

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Question #1 Report Error

The average of 1350,1800,2250 is

A. 1790

B. 1800

C. 1795

D. 1810

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Correct Answer: Option B

Explanation:
5400/3=1800.

This question belongs to: Maths Average

Question #2 Report Error

The average marks of 12 students is 72. If one student scored 84 marks, what is the total marks of the remaining students?

A. 720

B. 744

C. 768

D. 780

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Correct Answer: Option D

Explanation:
Total marks = 12×72 = 864. Remaining students' marks = 864−84 = 780.

This question belongs to: Maths Average

Question #3 Report Error

Average of 7 numbers 55. If average of 4 is 50, average of remaining 3?

A. 58

B. 60

C. 62.33

D. 65

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Correct Answer: Option C

Explanation:
Sum7=385. Sum4=200. Remaining=185. Average≈61.67 approx 62.

This question belongs to: Maths Average

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