First lets look at the information we have. Lets do it:-
In 20 min 250 pgs print out.
in 30 mins ? pgs print out.
Now lets firn the unit rate to find out how many pgs are printed out in a min. Then we will multiply by the amount of mins (30) to the amount of pgs which can be printed in 1 min. Then the answer will be the amount of pgs which could be printed in 30 minutes at this rate. AND then we will check our work. Lets do it:-
Divide to find the unit rate:-
250 ÷ 20 = 12.5
So, in 1 min 12.5 pages can be printed OR 12 and a half.
Lets multiply to find out how many pages can be printed in 30 minutes.
12.5 × 30 = 375
So, in 30 min 375 pgs can be printed at this rate.
CHECK OUR WORK:-
375 ÷ 12.5 = 30
We were RIGHT!!!!
So, in 30 minutes 375 pages can be printed at this rate.
Hope I helped ya!!
