In a workshop, a chair repair takes 3 hours and a table polish takes 2 hours. Ramesh has 18 hours this week, so x repairs and y polishes must satisfy the line drawn. How many pairs (x, y) of whole numbers, including 0, use up exactly 18 hours?

Question

Accepted Answer

4. 3x + 2y = 18 . On the grid the line passes exactly through the crossing points (0, 9), (2, 6), (4, 3), (6, 0) : 4 pairs.

In a workshop, a chair repair takes 3 hours and a table polish takes 2 hours. Ramesh has 18 hours this week, so $x$ repairs and $y$ polishes must satisfy the line drawn. How many pairs $(x, y)$ of whole numbers, including 0, use up exactly 18 hours?

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More Class 9 Work and Rate Equations practice

In a workshop, a chair repair takes 3 hours and a table polish takes 2 hours. Ramesh has 18 hours this week, so x repairs and y polishes must satisfy the line drawn. How many pairs (x,y) of whole numbers, including 0, use up exactly 18 hours?

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 9 Work and Rate Equations practice

In a workshop, a chair repair takes 3 hours and a table polish takes 2 hours. Ramesh has 18 hours this week, so $x$ repairs and $y$ polishes must satisfy the line drawn. How many pairs $(x, y)$ of whole numbers, including 0, use up exactly 18 hours?