pls help to solve this
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This is the answer of question no. 9
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question no 8
let denominator be x
numerator is x-4
by given condition x-4+1/x+1=1/2
x-3/x+1=1/2
2x-6=x+1
x=7
denominator is 7and numerator is 3
question no 10
let son's age be x
mother's age x+20
by given condition
x+20-10/x-10=3
x+10/x-10=3
x+10=3x-30
2x=40
x=20
son age is 20yrs and mother is 40yrs
let denominator be x
numerator is x-4
by given condition x-4+1/x+1=1/2
x-3/x+1=1/2
2x-6=x+1
x=7
denominator is 7and numerator is 3
question no 10
let son's age be x
mother's age x+20
by given condition
x+20-10/x-10=3
x+10/x-10=3
x+10=3x-30
2x=40
x=20
son age is 20yrs and mother is 40yrs
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