Book Maths Puzzle Numerical Ability Time Distance and Speed

A Train 150 meters long passes a mile store in 15 sec and another train of same length travelling in opposite direction in 8 sec. what is thw speed of the second train?

Read Solution (Total 0)

Book Other Question

there are two identical metal sheets first one is melted and converted into maximum possible spheres of equal radius 'r' cm. and 14 cubic cm metal was left .second one is melted and converted into maximum possible sphere of equal radius 2r cm and then 36 cubic cm of metal was left. if volume of each is integer find the volume of each bigger sphere? 23*53 = 8
17*39 = 11
49*24 = 13
66*32 = ?