Question

What is the formula and the answer of; Two numbers are in the ratio of 4:7 if the difference between the two number is 48 find the sum of two numbers.

Answer 1

4x = 7y
x-y = 48
x - 4x/7 = 48
3x = 7*48
x = 7*16 = 112
So, y = 4*16 = 56
check: 112-56 = 48

Answer 2

oops: y=64

Answer 3

or

let the two numbers be 4x and 7x
7x - 4x = 48
3x=48
x = 16

so the two numbers are 4(16) or 64
and 7(16) or 112

Answer 4

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