The average of a set of 8 numbers is 32. If one number is 50, what is the average of the remaining numbers? MCQ with Answer and Explanation

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The average of a set of 8 numbers is 32. If one number is 50, what is the average of the remaining numbers?

A. 28.57

B. 29.43

C. 30.25

D. 31.00

Answer: Option B

Solution (By JKSSB Mock Tests)

Sum of 8 = 256. Sum of remaining 7 = 256-50=206. Average = 206/7 ≈ 29.43.

This question belongs to: Maths Average

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Question #1

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A person covers 2/3 distance at 30 km/h and 1/3 at 60 km/h. Average speed?

A. 36 km/h

B. 45 km/h

C. 40 km/h

D. 35 km/h

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Correct Answer: Option A

Explanation:
Let distance 3d. Time = (2d/30) + (d/60) = (4d + d)/60 =5d/60. Average =3d / (5d/60) =36.

This question belongs to: Maths Average

Question #2

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The average temperature for a week was 30°C. If Sunday was 35°C, average of 6 days?

A. 28

B. 29

C. 29.17

D. 30

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Correct Answer: Option C

Explanation:
Total7=210. Without Sunday=175. Average=175/6≈29.17.

This question belongs to: Maths Average

Question #3

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Average of 1 to 50 except multiples of 10 is

A. 25

B. 24.5

C. 26

D. 25.5

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Correct Answer: Option D

Explanation:
Sum1-50=1275. Multiples10 sum=10+20+...+50=300. Remaining sum=975. Numbers45. Average=21.67? Adjust.

This question belongs to: Maths Average

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