# NCERT Class 7 Mathematics Solutions: Chapter 2 – Linear Equations in One Variable Exercise 2.6 Part 2

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Question: 6 The ages of Hari and Harry are in the ratio 5:7. Four years from now the ratio of their ages will be 3:4. Find their present ages.

Answer:

Let’s the age of Hari and Harry be and years.

According to question

Hence, the age of Hari and

The age of Harry

Question: 7 The denominator of a rational number is greater than its numerator by 8. If the numerator is increased by 17 and the denominator is decreased by 1, the number obtained is Find the rational number.

Answer:

Let the numerator of a rational number is.

Then denominator is.

According to the question

Hence, the required relational number =