The speeds of two cars are in the ratio 9:17. If the second car covers 510 kms in 5 hours, then the speed of the first car is

54 km/hr

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

63 km/hr

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

60 km/hr

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

None of these

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

Let the speed of two cars be 9x and 17x km/hr.

Then, 17x = 510/5 = 102

x = 102/17 = 6

Speed of first car = (9 $\times$ 6) km/hr = 54 km/hr

Suggest Corrections

Similar questions

100 k m

2 \frac{1}{2}

60 k m / h r

1 \frac{1}{2}

A car moving on a straight road covers one third of the distance with 20 km/hr and the rest with 60 km/hr. The average speed is

20 m/s

km/hr

A car covers the first half of the distance in 40 km/hr and the second half in 60 km/hr. what is the avrage speed of the car?

Join BYJU'S Learning Program