Tag: math & puzzles

A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the speed of the train is 54 km/hr, what is the length of the platform?

Father is aged three times more than his son Johnny. After 8 years, he would be two and a half times of Johnny's age. After further 8 years, how many times would he be of Johnny's age?

Seeta is four years older than Geeta who is twice as old as Rita. If the total of the ages of Seeta, Geeta and Reeta be 54, the how old is Geeta?

In the first 10 overs of a cricket game, the run rate was only 3.2. What should be the run rate in the remaining 40 overs to reach the target of 282 runs?

Two students appeared at an examination. One of them secured 30 marks more than the other and his marks was 60% of the sum of their marks. The marks obtained by them are (Select the correct pair, the order is irrelevant):

Two trains, 500 km apart, are travelling towardseach other, one at the speed of 40 kmph and the other at the speed of 60 kmph. A bird starts flying to and fro from one train to the other at a speed of 10kmph. Find the distance covered by the bird from the beginning till one hour before the two trains meet each other.