Question

The sum of four number is 1650. the sum of three of the numbers is 20% more than the other number x. what is the value of x?

Answer 1

Four numbers are A, B, C, x
A+B+C+x=1650
A+B+C=1.2x
{A+B+C}=y
y=1.2x
y+x=1650
1.2x+x=1650
2.2x=1650
x=750