Question

Two cars are moving in the same direction with the same speed (30kmphr) they are separated by a distance of 5km a car is moving in the opposite direction with the speed v kmph it meets these two cars at an interval of 4 minutes then v is

Answer 1

then the V is ,

let the two cars moving in same direction be A and B and the third car C.

let the velocity of C with respect to B would be U+ 30.

5/(4÷ 60)= u+ 30.

5×60/4u+30.

75=u+30.

hence u=45.

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