What comes after 2,4,8
These puzzles are given to aid the parent in understanding the reasoning the child is following. The answer is not as important as the logic. It will help, if the parent is able to focus on the same and help the child with the reasoning. If you feel you need help, drop us a mail, write in the comment section or talk to us.
Puzzle # 1:There are 9 identical looking gold coins, except that one is a counterfeit and weighs slightly less than each of the rest. (The rest weigh the same, of course).
What is the minimum no. of weighings (on a typical beam balance) required to be certain of finding the counterfeit coin?
Puzzle #2: A shopkeeper sells a toffee for a rupee and also gives a toffee in exchange for 3 toffee wrappers.
What is the maximum number of toffees you could eat with 15 rupees?
We are keen to know the reasoning the child followed and not the answer per se.
Let your child have fun with these and write your responses in the comments section.