Răspunsuri

Cel mai inteligent răspuns!
2014-08-07T18:40:05+03:00
1.
Nptam Pret =P
P+P*24%=P+P*24/100=P*(1+24/100)=P*124/100=74400
P=74400*100/124
P=60000 lei

2.

Notam numarul cu a
(a/3+a/4):2=21
(4a/12+3a/12):2=21
7a/12=42
7a=504
a=504:12
a=72
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