Question

A printer,prints a book of 300 pages at the rate of 30 pages per minute.Then, how long will it take to print the same book at the speed of 25 pages per minute

Answer 1

Answer:

12 minutes

Step-by-step explanation:

1st case:30 per minute

30 pages=1 min

300 pages=(300/30)*1=10 min

2nd case:25 per minute

25 pages=1 min

300 pages=(300/25) *1=12 min

Answer 2

Answer:

The required time is 12 minutes.

Step-by-step explanation:

As given, for printing 30 pages it takes = 1 min

So, for printing 300 pages, it takes = (1/30)*300= 10 minutes

Now the second case, for printing 25 pages, it takes = 1 minute

So for printing 300 pages, it takes= (1/25)*300 = 12 minutes.

The required time taken in the second case is 12 minutes.