Newspaper sheets
From only the page numbers on one sheet of newspaper, can you work out how many sheets there are altogether?
Problem
Here is a sheet of a newspaper.
Each sheet has four pages.
How many sheets are there altogether?
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If you liked this problem, here is an NRICH task which challenges you to use similar mathematical ideas.
Student Solutions
Answer: 17
Counting back to page 1
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68 pages
68$\div$4 = 17 sheets
Summing the page numbers
Moving away from the middle of the newspaper:
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8 + 61 = 69 7 + 62 = 69 6 + 63 = 69 1 + 68 = 69
68 pages
68$\div$4 = 17 sheets