An electrician needs 2 rolls of electrical wire to wire each room in a house. How many rooms can he wire with 3/5 of a roll of wire.

He can wire of a room with 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 = room.

Thus, roll of electrical wire needed to wire = =

Therefore, he can wire of a room with of a roll of wire.

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