Question

1
A car takes 2 hours to reach a destination by travelling at the speed of 60km/h. How
long will it take when the car travels at the speed of 80 km/h​

Answer 1

ANSWER : Given , time = 2 hour

speed in 2 hour = 60km/h

speed in y speed = 80 km/h

by unitary method we have to find speed in one hour =60/2=30

to find time in y 80km/h ,

1/y=30/80

y = 80/30=2.6666.... h

answer is 2 hour 7 min in round off

Step-by-step explanation: