Problema Solution

One number is 200% greater than the other and their difference is 20.

What is the smallest number?

Answer provided by our tutors

let 'x' and 'y' be the numbers and x>y


x is 200% greater then y means:


x = 2*y


their difference is 20 means:


x - y = 20


by solving the system of equations


x = 2*y

x - y = 20


we find


x = 40


y = 20


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the smaller number is 20.