Question

A car moves on a speed of 40km per hour in 20 mins and then 80km per hour in another 20 mins .then calculate the total distance covered by the car

Answer 1

Here is the solution of your asked problem

Answer 2

S1=40 KMPH
T1=20 MIN=20/60=1/3 HOURS
D1=S1 × T1=40/3 KM
S2=80 KMPH
T2=20 MIN=20/60=1/3 HOURS
D2=S2 × T2=80/3 KM
TOTAL DISTANCE =D1+D2=40/3+80/3
=120/3
=40 KM