Average speed for 3 equal distances at 20,30,60 km/h? MCQ with Answer and Explanation

Question

Share Report Error

Average speed for 3 equal distances at 20,30,60 km/h?

A. 40

B. 36.67

C. 33.33

D. 30 km/h

Answer: Option D

Solution (By JKSSB Mock Tests)

3d / (d/20 +d/30 +d/60) =3 / (0.05+0.0333+0.0167) =3/0.1 =30.

This question belongs to: Maths Average

Request complete Subject PDF

Discuss this Question (0)

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

Practice More Average Questions

Question #1

Average of all odd numbers from 1 to 49 is

A. 25

B. 26

C. 23

D. 24

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option A

Explanation:
25 numbers. Average 25.

This question belongs to: Maths Average

Question #2

Find the average of all numbers from 1 to 15 that are divisible by 3.

A. 12

B. 8

C. 9

D. 10

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

Explanation:
Numbers: 3,6,9,12,15 sum=45, count=5, avg=9.

This question belongs to: Maths Average

Question #3

Average of 12 numbers 1720. If average of 8 is 1715, average of remaining 4?

A. 1730

B. 1732

C. 1725

D. 1728

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option A

Explanation:
Sum12=20640. Sum8=13720. Remaining=6920. Average=1730.

This question belongs to: Maths Average

Explore All Average MCQs