Question

a positive number is 5 times another number.If 21 is added to both the number,then one of the new number become twice the other new number.what are the numbers.​

Answer 1

let the smaller no be x

bigger no=5x

if 21 is added to both

5x + 21=2(x + 21)

5x+21=2x+42

5x-2x=42-21

3x=21

x=21/3

x=7

therefore the ist no = 7 and second no =5*7=35.

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