book
Maths Puzzle
Numerical Ability
An airplane flew for 4 hours with a 20 km/h tail wind. The return flight against the same wind took 5 hours. Find the speed of the plane in still air.
Read Solution (Total 0)
book Other Question
2(4-3x)<4(x-5)
The volume of a spehere can be given by the formula V=4.18879rcubed