Raghu drove for 3 hours at a rate of 50 kilometer per hour and for 2 hours at 60 kilometer per hour. Determine his average speed for the whole journey.

54 km/hr

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

45 km/hr

No worries! We‘ve got your back. Try BYJU‘S free classes today!

27 km/hr

No worries! We‘ve got your back. Try BYJU‘S free classes today!

64 km/hr

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A
54 km/hr

The formula for distance is

Distance = Rate $\times$ Time
Total distance = 50 × 3 + 60 × 2 = 270 km

Total time = 3 + 2 = 5
Using the formula,

Average speed = $\frac{T o t a l d i s t a n c e}{T o t a l t i m e}$ = $\frac{270}{5}$ = 54 km/hr (Answer)

Suggest Corrections

Similar questions

54

5

60

A

B

x

y

x

y

4 k m

16 k m

Anil and Alex are car drivers. Anil drove 180 kilometers in 4 hours and Alex drove 230 kilometers in 5 hours. Whose average speed is greater?

Join BYJU'S Learning Program