Question

A car travelling at 60 km per hour left Dehradun at 3 p.m. One hour later another car travelling at 80 km per hour started over the same road to overtake the first car. How long must the second card travel?

Please answer ASAP​

Answer 1

Answer:

Car 1 time = 4 hour

Car 2 time = 3 hours

Step-by-step explanation:

Car 1

speed = 60 km per hour

time = t1 hour

distance = speed * time = 60*t1 km

Car 2

speed = 80 km per hour

times = (t1 - 1) hour (because car2 left 1 hour late)

distance = speed * time = 80 (t1 -1) km

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distance travelled by both cars are same

60*t1 = 80 (t1 -1)

t1 = 4 hours

Answer 2

Answer:

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