Question

Two numbers are in the ratio 5:7 . If the sum of the numbers is 720 , find the numbers

Answer 1

let the numbers be 5x and 7x

5x + 7x = 720

12x = 720

x = 60

therefore the numbers are

5(60) = 300

7(60) = 420

Answer 2

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you are given two no= 5 and 7 in ratio
so let the no = 5x and 7x

also you are given the sum of the numbers = 720
so , 5x +7x=720
= 12x =720
= x= 720÷ 12 = 60
therefore the numbers are 5x = 5×60=300
also 7x = 7 × 60 = 420

therefore the required numbers are = 300 and 420

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