Question 561765
Solve this problem:
find all sets of two consecutive positive odd integers whose sum is no greater than 18.
:
the phrase "no greater than 18" implies that 18 can be included, therefore
:
x + (x+2) =< 18
2x + 2 =< 18
2x =< 18 - 2
2x =< 16
x =< 16/2
x =< 8
However, they want odd integers, therefore
7, 9 would have to be the highest set
and
5, 7
3, 5
1, 3