Question

Points A and B are 70 km apart on a highway. A car starts from A and another car starts from B at the same time. If they travel in the same direction, they meet in 7 hours, but if they travel towards each other they meet in one hour. What are their respective speeds?

Answer 1

Hey

Here is your answer,

Point A car speed be = a km/hr
Point B car speed be = b km/hr

If they travel in the same direction, they meet in 7 hours. Point A and B are 70 km apart.
7a = 7b + 70
a = b + 10

if they travel towards each other they meet in one hour. Point A and B are 70 km apart.
a + b = 70

putting value for a,
b + b + 10 = 70

b = 30 km/hr
a = 40 km/hr

Hope it helps you!

Answer 2

Hey... I think this can be ur answer!!