Question

7. (a) A television set uses 3 units of electricity in 2 hours. How many units will it use in 7 hours?

Answer 1

Step-by-step explanation:

The TV set uses for 2 hours 3 units.

In 1 hour, it uses 1.5 units.

So, in 7 hours, it uses 1.5 x 7 = 10.5 units.

Thank you

Answer 2

Answer:

3 is the answer of this question