A bulb of power 40 W is used for 12.5 h each day for 30 days. Calculate the electrical energy consumed.

Explanation

To solve the problem of calculating the electrical energy consumed by a 40 W bulb used for 12.5 hours each day for 30 days, we can follow these steps:

### Step 1: Calculate the total time the bulb is used.
The bulb is used for 12.5 hours each day for 30 days.

\[ \text{Total time} = \text{Daily usage} \times \text{Number of days} = 12.5 \, \text{hours/day} \times 30 \, \text{days} \]
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