Question

The distance between two towns is 300 km. Two cars start simultaneously from
other by 7 km/hr. If the distance between the cars after 2 hours is 34 km, find the
these towns and move towards each other. The speed of one car is more than the
speed of the cars.
​

Answer 1

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Let

• the speed of car B be x km/h.
• Then, speed of car A =(x+7) km/h

Now, distance covered by car B in 2 hours=2x km and

Distance covered by car A in 2 hours =2(x+7) km

Given,

• distance between the cars after two hours is 34 km and
• distance between both the towns is 300 km.

So, distance covered by both the cars in two hours moving in opposite direction =300−34=266 km

⇒2(x+7)+2x=266

⇒2x+14+2x=266

⇒4x=252

⇒x=63 km/h

Therefore, speed of car B =63 km/h

Speed of car A =63+7=70 km/h.