Math
posted by Jay on .
The difference between two positive number is 72 and one of them is divided by the other, the quotient is 4.Find those numbers.
Option:
a) 22&94
b) 24&96
c) 20&92
d) 30&102

I'll be glad to check your answer.

Let the 1st # = x
And the 2nd # = y
Difference between the two # is = 72
x  y = 72  Equation 1
Then, one of the # divided by the other # which = 4
x/y = 4 Equation 1
x  y = 72  eq 1
x / y = 4  eq 2
x = 72 + y  eq 3
Sub eq 3 in eq 2 we get,
[(72 + y) / y] = 4
72 + y = 4y
72 = 4y  y
72 = 3y
y = 72 / 3
y = 24
Now sub y = 24 in equation 1 or equatin 3 and solve for x?