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Sum of the ages of a father and the son ...

Sum of the ages of a father and the son is 40 years. If Father's age is three times that of his son, then find their reaspective ages.

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Ages are 30yr. And 10 yrs
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UNIQUE PUBLICATION-LINEAR EQUATIONS IN TWO VARIABLES -UNIQUE PRACTICE SESSION (3 MARKS QUESTION)
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  8. Solve the simultaneous equations. 45x+4y-4=0, x-12y-20=0

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  10. Solve (4)/(x)+(5)/(y)=7, (3)/(x)+(4)/(y)=5

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