Question

A copy machine makes 24 copies per minute. How many copies does it make in 3 minutes and 45 seconds?

copies
Х
?

Answer 1

90 copies

Explanation:

24*3= 72

1/2*24= 12 for 30 seconds

1/2*6= 6 for 15 seconds

45/15=3

72+18= 90