Knowing your age 2.
This trick is definite trick which works only for 2 digit no.
- Tell your friend to multiply the first digit number of his age by 5.
- Tell him to add 3.
- Tell him to multiply answer by 2.
- Tell him to add the second digit of his age in the answer.
- Ask him to tell the answer.
- Subtract 6 from the answer in your mind.
- The answer which you got is the age of your friend !