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2014-05-17T16:26:25+03:00
A+b=72
a=[10,8]

10=2*5
8=2³
[10,8]=2³ *5=8*5=40   ⇒a=40
b=72-40
b=32

a)p% din a =b
p/100 *40=32
p/100=32/40
p=100*32/40
p=10*32/4
p=10*8
p=80%

b)p% din 72=b
p/100*72=32
p/100=32/72
p=100*32/72
p=100*4/9
p=400/9
p=44,4%