For three runners (on the first to third place) is prepared 30 chocolate that they be distributed in the ratio of 3 : 2 : 1

How much chocolate will get everyone?

Correct result:

a =  15
b =  10
c =  5


a=30 3/(3+2+1)=15
b=30 2/(3+2+1)=10
c=30 1/(3+2+1)=5

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