Answer:
He can wire [tex]\frac{3}{10}[/tex] of a room with [tex]\frac{3}{5}[/tex] of a roll of wire.
Step-by-step explanation:
Given:
An electrician needs 2 rolls of electrical wire to wire each room in a house.
Now, to find rooms he can wire with 3/5 of a roll of wire.
So, we solve by using unitary method:
If, 2 rolls of electrical wire needed to wire 1 room.
So, 1 roll of electrical wire needed to wire = [tex]\frac{1}{2}[/tex] room.
Thus, [tex]\frac{3}{5}[/tex] roll of electrical wire needed to wire = [tex]\frac{1}{2} \times \frac{3}{5}[/tex] = [tex]\frac{3}{10} \ room.[/tex]
Therefore, he can wire [tex]\frac{3}{10}[/tex] of a room with [tex]\frac{3}{5}[/tex] of a roll of wire.
