Question

A printing machine can print 150 sheets for every 3 mins.Find i)the time taken to print 3000 sheets. ii)How many sheets can be printed in 1 1/2 hour​

Answer 1

The printing machine prints 150/3 = 50 sheets every minute.

i) Time taken to print 3000 sheets = 3000/50 = 60 minutes = 1 hour

ii) Sheets printed in 90 minutes (1.5 hours) = 50 * 90 = 4500 sheets.