Question

which glass filled first?

Answer 1

Answer:

Glass 3 will get filled first.

Explanation:

The drink is getting poured in the Glass 1 and on its left side there is a pipe which leads to fill Glass 2 and also on right side there is pipe which leads to fill Glass 3.

As Glass 1 starts getting filled the drink will start going from right side pipe to Glass 3.

On left side of Glass 3 there is a pipe leading to Glass 6 which is blocked at the end and on the right side of Glass 3 there is a pipe leading to Glass 7 which is blocked from starting.

So, the drink flowing from Glass 1 will fill Glass 3 the first from all Glasses.