Left page numbers are always even and right page will have a number 1 greater that the left. so its not possible to have a sum of 87.
If even page is 2n then right page = 2n + 1:-
2n + 2n + 1 = 87
4n = 86
n = 86 / 4 = 21.5 and 2n = 43 but left page is even so its not possible to have a sum of left + right = 87.
Out of every two consecutive numbers one will always be even. There is only one even prime number. Whether there are an infinite number of pairs of primes which differ by two (the twin prime conjecture) is still open e.g. 3 , 5; 41 , 43 ; 101 , 103 .
Answer:
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Answer:
1507.666666666.....
Step-by-step explanation:
