Question:

Which One Will Be Full First ?

Answer:

Thanks Stivine for answer. You are right –  both 3 and 4 will fill first simultaneously.

The reason is water finds its own level. Google ” water finds own level” to understand the physics behind it.

Container 3,4 are at same level and will  fill up simultaneously till it reaches brim level  of 3,4 and slightly above the lower nozzle of 2 ( i.e.  water in 2,3,4 are at SAME LEVEL).

Please like us for more such puzzles. Any queries, please post in comments below.