A number is 5 times the other number. If 7 is added to both the numbers, then one of the new number becomes thrice the other new number. What are the numbers?
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let the other be x
let the number be 5x
A.T.Q
3 (x+7)= 5x+7
3x+21=5x +7
3x-5x=7-21
-2x= -14
x=14/2
x=7
first number is 7 .
second number is 7×5 = 35
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