# The Speed of The Truck must be Increased by :

A truck can finish a certain journey in 10 hours at a speed of 48 km/h. In order to cover same distance in 8 hours, the speed of the truck must be increased by

- 6 km/h
- 7.5 km/h
- 12 km/h
- 15 km/h

**Answer: (3) 12 km/h**

**Explanation:-
**A truck can finish a certain journey in 10 hours at a speed of 48 km/h.

Then, the total distance covered by truck = 48 x 10

= 480 km

In a order to cover same distance in 8 hours,

Then, the speed of truck = 480/8

= 60 km/h

Then, the speed of the truck must be increased by = 60 – 48

= 12 km/h

Hence. the answer is (3) 12 km/h.