Question

Brain teaser. Rack ur brains You have one glass of 7litres and another of 4litres... How can you use both to measure 6litres of chocolate shake exactly?

Answer 1

Take 2 glasses of full chocolate shake in 7 litres glass.
Then, total shake = 7*2 = 14 lit.
Now, remove 4 litres from it 2 times using the four litres glass.
Then, the remaining chocolate shake = 14 - 4*2
= 14-8 = 6 litres.
Please mark as brainliest if it helps you...

Answer 2

Here is the solution:-

• Take the 7 litres glass and fill it.
• pour the liquid of the 7litre glass in the 4 litres glass till it is completely filled.
• So now you have 3 litres liquid in the 7 litres glass.
• Now empty the 4 litres glass and pour the 3 litres liquid from 7 litres glass to 4 litres glass.
• Now the 4 litres glass has 3 litres liquid and the 7 litres glass is empty.
• Now fill the 7litres glass fully and pour the liquid in 4 litre glass till it gets filled.
• The 4 litres glass was previously filled with 3 litres of liquid so it will take 1 litre liquid from 7 litre glass to get filled.
• So the 7 litre glass will have 6 litre liquid.

Hope this helps :)