Question

Jayendra reaches his destination in 8 hours when he is driving at speed of 90 km/ h. In order to cover the same distance in six hours what should be his speed?

1. 220 km/h
2. 150 km/h
3. 120 km/h
4. 100 km/h

Answer 1

Correct Answer - Option 3 : 120 km/h

Given:

Time Taken = 8 hours

Current Speed = 90 km/h

Formula used:

Speed = Distance/ Time

Calculation:

Calculating total distance travelled by jayendra,

⇒ Distance = Speed × Time

⇒ D = 90 × 8

⇒ D = 720 km

Now, for D = 720 km and T = 6

⇒ S = 720/ 6

⇒ S = 120 km/ hr

∴ speed is 120 km/ hr