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Mathematics
OpenStudy (anonymous):

I am buying stationery for use in the office. I have 23 staff in the office and need to get 2 pens and 1 notebook for each of them. The pens are sold in packets of either 10 or 12 and the notebooks are sold in packets of 8 or 10. I decided to buy just the larger packets of each and save any extra ones. I told my assistant how many packets of pens and notebooks to buy, but when he returned I found that he had bought the smaller packets in each case. I am going to buy sufficient extra pens and notebooks that I need for my staff singly. A single pen will cost 12¢ and a single notebook will

OpenStudy (anonymous):

a single notebook will cost 35¢. How much do I need to pay for the extra pens and notebooks? A 36¢ B 72¢ C $2.81 D $3.06 E $3.17

OpenStudy (anonymous):

yah, just work it out by hand eh. needed 2*23 = 46 pens in 4 packs of 12 but got 4x10 ended up 6 short, have to buy 6 pens at 12c each. etc.

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