Average age of 8 persons is 35. If two persons aged 40 and 30 leave, new average? MCQ with Answer and Explanation

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Average age of 8 persons is 35. If two persons aged 40 and 30 leave, new average?

A. 36

B. 37

C. 34

D. 35

Answer: Option D

Solution (By JKSSB Mock Tests)

Total=280. Leave 70. Remaining 210 for 6. 35.

This question belongs to: Maths Average

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Question #1

Average of 15 numbers 1210. If average of 9 is 1205, average of remaining 6?

A. 1220

B. 1218

C. 1217.5

D. 1215

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Correct Answer: Option C

Explanation:
Sum15=18150. Sum9=10845. Remaining=7305. Average=1217.5.

This question belongs to: Maths Average

Question #2

Average of 8 numbers 850. If average of 5 is 845, average of remaining 3?

A. 855

B. 860

C. 858.33

D. 857

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Correct Answer: Option C

Explanation:
Sum8=6800. Sum5=4225. Remaining=2575. Average≈858.33.

This question belongs to: Maths Average

Question #3

The average of 7 numbers is 18. If one number is 24, what is the average of the remaining 6 numbers?

A. 18

B. 17

C. 16

D. 19

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Correct Answer: Option B

Explanation:
Total = 7×18 = 126. Remaining total = 126−24 = 102. Average = 102/6 = 17.

This question belongs to: Maths Average

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