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22-09-2016
Mathematics

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there are two natural numbers. one exceeds the other by 40. if the ratio of the two numbers is 7 : 3, find the numbers.

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nobillionaireNobley nobillionaireNobley

25-09-2016

Let the two numbers be x and x + 40, then
7/3 = (x + 40)/x
7x = 3(x + 40) = 3x + 120
7x - 3x = 120
4x = 120
x = 120/4 = 30

Therefore, the two numbers are 30 and 70.

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