Question

A car moves with a speed of 60 km per hour for 20 minutes and they with a speed of 80 km per hour for next 15 minutes what is the total distance covered by the car.

help to do this​

Answer 1

SPEED OF CAR IN FIRST 15 MINUTES=40km/hr

DISTANCE COVERED =SPEED×TIME TAKEN

60 MINUTES =1HOUR

15 MINUTES =15/60 HOURS .

DISTANCE COVERED =240×15/60=10 KM/HR

SPEED OF CAR IN NEXT 15 MINUTES =60 KM/HR DISTANCE COVERED=60×15/60=15KM

TOTAL DISTANCE COVERED =(10+15)=25

25 IS CORRECT