Average of 8 numbers 2200. If average of 5 is 2195, average of remaining 3? MCQ with Answer and Explanation

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Average of 8 numbers 2200. If average of 5 is 2195, average of remaining 3?

A. 2210

B. 2207

C. 2208.33

D. 2205

Answer: Option C

Solution (By JKSSB Mock Tests)

Sum8=17600. Sum5=10975. Remaining=6625. Average≈2208.33.

This question belongs to: Maths Average

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Question #1

Average of 15 numbers 310. If average of 9 is 305, average of remaining 6?

A. 317.5

B. 320

C. 318

D. 315

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Correct Answer: Option A

Explanation:
Sum15=4650. Sum9=2745. Remaining=1905. Average=317.5.

This question belongs to: Maths Average

Question #2

What is the average of the first 5 prime numbers?

A. 5.8

B. 5.6

C. 6.0

D. 5.4

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Correct Answer: Option B

Explanation:
Primes: 2,3,5,7,11 sum=28, avg=28/5=5.6.

This question belongs to: Maths Average

Question #3

Average of 20 numbers 120. If average of 12 is 115, average of remaining 8?

A. 125

B. 126

C. 130

D. 127.5

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Correct Answer: Option D

Explanation:
Sum20=2400. Sum12=1380. Remaining=1020. Average=127.5.

This question belongs to: Maths Average

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