Question:

You have two jugs a 3 and 5 liter jug how do you get 4 liters in a jug.

Answer:

This is one of the more basic questions, but it still appears in job interviews. It is basically impossible not to get the answer correct.

1) First fill the 5 liter jug.

2) Poor water from the 5 liter into the 3 liter one until its full. That leaves 2 liters in the 5 liter,

3) Empty the 3 liter and transfer the 2 liters into it. This leaves 1 liter of space in the 3 liter jug.

4) Then fill the 5 liter jug

5) Then poor 1 liter out of the 5 liter into the 1 liter of empty space in the 3 liter jug.

Done the 5 liter jug has 4 liters in it

Another way.

ReplyDelete1) Fill the 3 ltr jug, put it in 5 ltr jug.

2) Again fill the 3 ltr jug, put it in 5 ltr jug till its full. Now 3 ltr jug has 1 ltr.

3) Empty the 5 ltr jug.

4) Put the 1 ltr from 3 ltr jug into 5 ltr jug.

5) Fill up the 3 ltr jug and put it in 5 ltr jug again.