Maths(20fun) ratio

2007-11-03 9:19 pm
1) 6 machines produce 672 articles in 4 hours.

a) Find the production rate of each machine per hour in articles/machine.

b) If all machines produce articles at the same rate, how many articles can 5 machines produce in 9 hours?

回答 (1)

2007-11-04 3:57 am
✔ 最佳答案
1a) No. of articles produced each hour:

672 / 4

= 168 articles / h

Production rate of each machine per hour in articles:

168 / 6

= 28 articles / machine / h

b) The no. of articles produced:

28 x 5 x 9

= 1260
參考: My Maths Knowledge


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