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

Question Report Error

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

A. 50 km/h

B. 48 km/h

C. 45 km/h

D. 55 km/h

Answer: Option B

Solution (By JKExamLibrary)

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

This question belongs to: Maths Average

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Average Questions

Question #1 Report Error

The average of 6 numbers is 29. If one number is 34, find the average of the remaining 5.

A. 28

B. 27.8

C. 27.6

D. 28.2

View Answer & Solution Discuss

Correct Answer: Option A

Explanation:
Sum=6×29=174. Remaining sum=174-34=140. Avg=140/5=28.

This question belongs to: Maths Average

Question #2 Report Error

Average of 8 numbers 50. If average of 5 is 45, average of remaining 3?

A. 57

B. 60

C. 58.33

D. 55

View Answer & Solution Discuss

Correct Answer: Option C

Explanation:
Sum8=400. Sum5=225. Remaining=175. Average≈58.33.

This question belongs to: Maths Average

Question #3 Report Error

Average speed to cover a distance in two equal parts at speeds x and y is

A. x+y

B. 2xy/(x+y)

C. (x+y)/2

D. xy/(x+y)

View Answer & Solution Discuss

Correct Answer: Option B

Explanation:
Harmonic mean for equal distances.

This question belongs to: Maths Average

Explore All Average MCQs