Question

answer if u can.
u have two glass a 3 litre glass and a 5 litre glass and also u have a water tank.
now using two glass u have to measere 4 litre water.
HOW ??

Answer 1

first fill 5 litre glass and then pour the water from 5 litre glass to 3 l glass till it is filled now there will be 2 l of water will be left in 5 litre glass.
now pour this water into 4 l tank
now you will have to fill 2 l more water
so for this repeat this process again