Average of 15 numbers 95. If average of 9 is 90, average of remaining 6? MCQ with Answer and Explanation

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Average of 15 numbers 95. If average of 9 is 90, average of remaining 6?

A. 100

B. 98

C. 102.5

D. 105

Answer: Option C

Solution (By JKSSB Mock Tests)

Sum15=1425. Sum9=810. Remaining=615. Average=102.5.

This question belongs to: Maths Average

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Question #1

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The average of 5 numbers is 22. If two numbers are 18 and 24, find the average of the remaining three.

A. 22.67

B. 23

C. 22

D. 21.33

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Correct Answer: Option A

Explanation:
Sum=5×22=110. Sum of two=18+24=42. Sum of three=68. Avg=68/3=22.67.

This question belongs to: Maths Average

Question #2

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The average of 240,320,400 is

A. 310

B. 315

C. 320

D. 330

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Correct Answer: Option C

Explanation:
960/3=320.

This question belongs to: Maths Average

Question #3

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Average of 10 numbers 2280. If average of 6 is 2275, average of remaining 4?

A. 2286

B. 2290

C. 2285

D. 2287.5

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Correct Answer: Option D

Explanation:
Sum10=22800. Sum6=13650. Remaining=9150. Average=2287.5.

This question belongs to: Maths Average

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