two numbers are the ratio 3:5 if each is increased by 10 the ratio is 5:7 find the orginal numbers
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Let the numbers be 3x and 5x such that their ratio becomes 3:5
Then
(3x+10)/(5x+10)=5/7
7*(3x+10)=5*(5x+10)
21x+70=25x+50
25x-21x=70-50
4x=20
x=5
3x=3*5=15
5x=5*5=25
The numbers are 15 and 25
Then
(3x+10)/(5x+10)=5/7
7*(3x+10)=5*(5x+10)
21x+70=25x+50
25x-21x=70-50
4x=20
x=5
3x=3*5=15
5x=5*5=25
The numbers are 15 and 25
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