Question

"discipline plays a very important role in students life"change this sentence in to kannada​

Answer 1

Answer:

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