Answers

2014-10-14T21:01:10+08:00
(x) + (x+2) + (x+4) + (x+6) + (x+8) = 85
5x+20 = 85
5x=85-20
5x=65
x=13

sum of the last 2 = (x+6) = 13 + 6 =19
                           = (x+8) = 13 + 8 = 21

19+21 =40
1 5 1
2014-10-14T21:10:40+08:00
I just do 85÷5=17 ..... 17 is mid..
13+15+17+19+21=85
so 19+21=40 
SO THE ANSWER IS 40
1 5 1
believe me... even if I'm just in elementary level I can solve problems like this
and I just do a shortcut
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