Question

Q.29. Keshav completes a journey of 360 km in 5 1/2 hours in a car. If he covers the first three-fourth
the journey at 60 km/hr. find the speed of the car for the balance of the journey.​

Answer 1

3/4 Distance = 240 km
Time = 4hrs
Remaining distance =120 km
Time 1.5 hr
Speed = 120/1.5 =80 km/hr

Answer 2

Answer:

first

3/4 × 360

270

360-270

90

let the time be x

60=90/x

x=90/60

x=3/2

11/2-3/2

9/2

to find the speed

90÷9/2

90×2/9

20