Answers

2015-07-21T20:28:48+08:00
Apple= 11, pear= 16, orange= 13

solution:
apple + orange + pear = 40

a= a
p= a+5
o= a+5-3

a+p+o= 40
a+a+5+a+5-3 = 40
3a+10-3 = 40
3a+7= 40
3a = 40-7
3a = 33
3a/3 = 33/3
a =11

a=11
p=16
o=13
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