Question

A painter can paint 1/2 a room in 1 1/2 hours. How many of the same-sized rooms can he paint per hour?

Answer 1

Answer:

1/3 a room

Step-by-step explanation:

we know that

A painter can paint 1/2 a room in 1 1/2 hours

so

using proportion

Find out how many of the same-sized rooms can he paint per hour

Remember that

$1\frac{1}{2}=\frac{1*2+1}{2}=\frac{3}{2}$

Let

x -----> the number of the same-sized rooms

$\frac{(1/2)}{(3/2)}\frac{room}{hours} =\frac{x}{1}\frac{room}{hour}\\\\x=\frac{1}{3}\ room$