Question

You have a bag with 100 kgs of sand and you have 2 other bags one to get 5kg and one to get 3 kg how will you give someone 7 kg using these two bags?

Answer 1

Fill the 5kg bag completely from 100kg bag
From it fill 3kg bag completely,

So, now 5kg bag contains 2kg sand and 3kg bag contains 3kg sand.

Empty the 3kg bag, transfer 2kg sand from 5kg bag to 3kg bag,
Fill the 5kg bag completely.

So now, 5kg bag contains 5kg sand and 3kg bag contains 2kg sand.

So, total 7kg sand.



Thank you!