The sum of the page numbers of two facing pages of book is 85. What are the page numbers of two facing pages of the book.If the sum is not given,but the product is given to be 1806,how will you find the the page numbers.
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let us suppose x and other page x+1
then
x+x+1=85
2x=85-1
2x=84
x=42
x+1=43
42×43=1806
hence 42 and 43 are page numbers
then
x+x+1=85
2x=85-1
2x=84
x=42
x+1=43
42×43=1806
hence 42 and 43 are page numbers
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