Average speed for equal distances at 40 km/h and 60 km/h is MCQ with Answer and Explanation

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Average speed for equal distances at 40 km/h and 60 km/h is

A. 50 km/h

B. 48 km/h

C. 55 km/h

D. 45 km/h

Answer: Option B

Solution (By JKSSB Mock Tests)

Harmonic mean for equal distance: 2×40×60 / (40+60) = 4800/100 = 48 km/h.

This question belongs to: Maths Average

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Practice More Average Questions

Question #1

The average score of 40 matches is 50. If average of first 20 is 45, average of last 20?

A. 52

B. 50

C. 48

D. 55

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Correct Answer: Option D

Explanation:
Total=2000. First=900. Last=1100. Average=55.

This question belongs to: Maths Average

Question #2

Average of 12 numbers 920. If average of 8 is 915, average of remaining 4?

A. 932

B. 925

C. 928

D. 930

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Correct Answer: Option D

Explanation:
Sum12=11040. Sum8=7320. Remaining=3720. Average=930.

This question belongs to: Maths Average

Question #3

Average of 8 numbers 1200. If average of 5 is 1195, average of remaining 3?

A. 1207

B. 1205

C. 1208.33

D. 1210

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Correct Answer: Option C

Explanation:
Sum8=9600. Sum5=5975. Remaining=3625. Average≈1208.33.

This question belongs to: Maths Average

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