Time & distance

Quantitative Aptitude ( CCS)

Title

45:30

8 of 24 completed

5 of 15 completed

38 of 100 completed

8 of 20 completed

Indian Economy - Understanding the basics of Indian economic system

A person covers half of his journey at 30 km/hr and the remaining half at 20 km/hr. The average speed for the whole journey is

24 km/hr

28 km/hr

32 km/hr

None of these

Given, A = 30 km/h, B = 20 km/h
According to the formula, 2AB/A+B
Required average speed
= 2×30×20/30+20 = 1200/50 = 24km/h

Hence, option 1 is the correct answer.