Maths Maths Puzzle Numerical Ability Number System

Read the following three eqn.
3~4~5~7=2021
4~7~8~9=3656
6~9~2~6=3816
Now based on rule that has been used solve the following eqn:
7~2~7~4= ?

Read Solution (Total 3)

Maths Other Question

Can u find a six digit number under 3 lakh such that sum of it's digit is 31??? Out of the three numbers, the first is twice the second and three times the third. the average of the three numbers is 88. the smallest number is ??.