Question

A copy machine makes 44 copies per minute how many copies does it make in four minutes and 45 seconds

Answer 1

Number of copies made in 1 minute or 60 seconds =44

Number of copies made in 1  second =44/60

1 minute = 60 seconds

4 minutes = 4*60 = 240 seconds

total time = 240 + 45= 285 seconds

Number of copies made in 285 seconds =(44/60)  *285 =209 copies