Question

Laune reads 25 pages in 30 mins.

If Laune reads 200 pages at the same rate,how long will it take her?

Answer 1

25 pages 200 pages
------------ = ------------
30 min x min

You could cross multiply or logically look at it like this:
25 * what number = 200
25 * 8 = 200

Since we multiplied the numerator by 8 we must also multiply the denominator by 8.

30 * 8 = 240 minutes

Answer 2

It will take her 240 minutes to read 200 pages. because you do 200/25= 8 and then 8* 30= 240