Question

A printer can print 450 pages in 30 minutes whereas a photovopier can print 30 pages per minute which one is speedy?​​

Answer 1

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We can print 25 pages in 4 minutes

We need to know how long to print 2000 pages

Set up a proportion:

4 mins x mins

---------- = -----------

25 pages 2000 pages

cross multiply

25x = 4(2000)

25x = 8000

x = 8000/25 = 320 mins

There are 60 mins per hour so

(320mins)/(60 mins/hr) = 5 1/3 hours or 5 hours 20 mins

Step-by-step explanation:

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Answer 2

Solution:

Number of pages printed by printer in 30 minutes = 450 pages

Number of pages printed by photocopier in 1 minute = 30 pages

Number of pages printed by photocopier in 30 minutes = 30×30

= 900 pages

From above staement 1 and 2 photocopier is speedy (ans)