A car starts from A for B travelling 20 km an hour 1 1/2 hours later another car starts from - Science - Laws of Motion

Question

A car starts from A for B travelling 20 km an hour 1 1/2 hours
later another car starts from A and travelling at the rate of 30 km
an hour reaches B 2 1/2 hours before the first car Find the
distance from A to B

Deepika Sharma · Accepted Answer

Dear Student

Let, distance between A and B be x

The second car starts 1 5 hour later and reaches 2 5 hour early
then first car

So, the time difference = 4 hours

Thus, x/20 - x/ 30 = 4

x = 240

Distance between A and B is 240 Km

Regards

A car starts from A for B travelling 20 km an hour.1 1/2 hours later another car starts from A and travelling at the rate of 30 km an hour reaches B 2 1/2 hours before the first car. Find the distance from A to B.