Question

Rajneesh covers equal distances at speeds of 6 km/h, 4 km/h and 8 km/h respectively and takes a total time of 32.5 minutes. Find the total distance in km.

A. 4

B. 2

C. 1

D. 3

1. D
2. B
3. C
4. A

Answer 1

Correct Answer - Option 1 : D

Given:

Rajneesh speed 6 km/h, 4 km/h, 8 km/h.

Total time = 32.5 minutes

Formula used:

Speed = Distance/Time

Calculation:

Let the distance be 'x' km.

Total time taken

⇒ (x/6) + (x/4) + (x/8) hr = 32.5 minutes

⇒ (13x/24) hr = 32.5 minutes

⇒ (13x/24) × 60 minutes = 32.5 minutes

⇒ x = 1 km

Total distance covered 

⇒ 1 + 1 + 1

⇒ 3 km

∴ The total distance is 3 km.