the rato of two numbers is 3: 5 if each number is increased by 10 ,the ratio between them becomes 5:7 . find the original numbers
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Ratio of two numbers = 3 : 5
Let the common multiple be x
1st number = 3x
2nd number = 5x
ATP
3x+10 = 5
5x+10 7
= 7(3x+10) = 5(5x+10)
= 21x + 70 = 25x +50
=> 70 - 50 = 25x - 21x
=> 20 = 4x
=> x = 20/4
=> x = 5
1st number = 3x = 3×5 = 15
2nd number = 5x = 5×5 = 25
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