Question

a mechanical device in a workshop produces items at a constant rate of 60 items per hour. at this rate, how many items will the mechanical device produce in 3 hours?

Explanation:

Step1: Identify the rate and time

The rate is 90 items per hour, and the time is 3 hours.

Step2: Use the formula \( \text{Quantity}=\text{Rate}\times\text{Time} \)

Substitute the values: \( 90\times3 \)

Step3: Calculate the result

\( 90\times3 = 270 \)

Answer:

270