Average of 10 numbers 1330. If average of 6 is 1325, average of remaining 4? MCQ with Answer and Explanation

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Average of 10 numbers 1330. If average of 6 is 1325, average of remaining 4?

A. 1335

B. 1337.5

C. 1340

D. 1336

Answer: Option B

Solution (By JKSSB Mock Tests)

Sum10=13300. Sum6=7950. Remaining=5350. Average=1337.5.

This question belongs to: Maths Average

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Question #1

Average of 12 numbers 50. If average of 7 is 45, average of remaining 5?

A. 57

B. 55

C. 60

D. 58

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Correct Answer: Option A

Explanation:
Sum12=600. Sum7=315. Remaining=285. Average=57.

This question belongs to: Maths Average

Question #2

The average of 3 numbers is 12. If the numbers are in the ratio 1:2:3, find the smallest.

A. 8

B. 4

C. 10

D. 6

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Correct Answer: Option D

Explanation:
Sum=3×12=36. Ratio sum=6. Smallest = (1/6)×36=6.

This question belongs to: Maths Average

Question #3

Average of 9 numbers 490. If average of 6 is 485, average of remaining 3?

A. 498

B. 495

C. 505

D. 500

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Correct Answer: Option D

Explanation:
Sum9=4410. Sum6=2910. Remaining=1500. Average=500.

This question belongs to: Maths Average

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