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Impartiti numarul 93 in parti invers proportionale cu numerele 2,3 si 5.



Răspuns :

a+b+c=220
0,2= 2/10=1/5
0,5=5/10=1/2
0,25=25/100=1/4
a,b,c  ip 1/5 1/2  1/4
a*1/5= b* 1/2 =c * 1/4=k
a/5= b/2= c/4=k
a=5k
b=2k
c=4k
5k+2k+ 4k= 220 
11k=220
k=20
a=100
b=40
C=80