the ages of a and b are in the ratio 7:5.10 years hence the ratio of theirs ages will 9:7 .find the present ages
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Present age of a=7x
Present age of b=5x
AMP
7x+10+5x+10=9x+7x
12x+20=16x
12x-16x=-20
-4x=-20
-x=-5
x=5
Age of a=7x=7*5=35
Age of b=5x=5*5=25
Present age of b=5x
AMP
7x+10+5x+10=9x+7x
12x+20=16x
12x-16x=-20
-4x=-20
-x=-5
x=5
Age of a=7x=7*5=35
Age of b=5x=5*5=25
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