A father's age is x years. One-fifth of his age 10 years ago equals one-seventh of his age now. Form x - 10/5 = x/7 and find the father's present age.

Question

Accepted Answer

35. Cross-multiply: 7(x - 10) = 5x, so 7x - 70 = 5x, giving 2x = 70 and x = 35 years.

A father's age is $x$ years. One-fifth of his age 10 years ago equals one-seventh of his age now.
Form $\frac{x - 10}{5} = \frac{x}{7}$ and find the father's present age.

Step-by-Step Solution

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More Class 8 Reducing to Simpler Form practice

A father's age is x years. One-fifth of his age 10 years ago equals one-seventh of his age now. Form 5x−10​=7x​ and find the father's present age.

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 8 Reducing to Simpler Form practice

A father's age is $x$ years. One-fifth of his age 10 years ago equals one-seventh of his age now.
Form $\frac{x - 10}{5} = \frac{x}{7}$ and find the father's present age.