if a+b+ab=65 find ab
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a+b+ab = 65
ab = 65 - a - b
ab = 65 - a - b
shyamal5:
wrong
65=13X5 --> only combination
a+b+ab=65
b(a/b+1+a)=13X5
if b=5-->
5(a/5+a+1)=65
a/5 +1+a= 13
6a+5=65
6a=60
a=10, b=5
a-b=5
a+b+ab=65
b(a/b+1+a)=13X5
if b=5-->
5(a/5+a+1)=65
a/5 +1+a= 13
6a+5=65
6a=60
a=10, b=5
a-b=5
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