Asked by gustavo
The left and right page numbers of an open book are two consecutive integers whose sum is 303. Find these page numbers.
Answers
Answered by
mathhelper
easy way:
they must be just about half way, so 303/2 = 151.5
So the pages must be 151 and 152
(sure enough 151+152 = 303)
formal way:
let the two consecutive integers be n and n+1
n + n+1 = 303
2n = 302
n = 151
so the numbers are 151 and 152
they must be just about half way, so 303/2 = 151.5
So the pages must be 151 and 152
(sure enough 151+152 = 303)
formal way:
let the two consecutive integers be n and n+1
n + n+1 = 303
2n = 302
n = 151
so the numbers are 151 and 152
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