Question

If 4 men can finish a telephone line in 90 minutes, in how many minutes can 3 men do it? *

Answer 1

1 hour 7.5 minutes or 67.5 minutes

Step-by-step explanation:

4 men => 90 minutes

.°. 1 man => $\frac{90}{4}$ minutes

.°. 3 men => $\frac{90 \times 3}{4}$ minutes

.°. => 67.5 minutes.

.°. => 1 hour 7.5 minutes

Hence, your answer is 1 hour 7.5 minutes or 67.5 minutes.

Please mark me as the Brainliest.