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1. In trei lazi sunt 480 mere . in lada a doua sunt de 3 ori mai multe mere decat in prima iar in lada a treia de 2 ori mai multe decat in a doua. cate mere sunt in fiecare lada 

dau  c0r0ana


Răspuns :

a+b+c=480
b=3a=>a=b/3
c=2b
b/3+b+2b=480
b+3b+6b=1440
b=1440:10
b=144 kg mere in a2a lada
a=144:3=48 kg mere in prima lada
c=2x144=288 kg mere in a3a lada
a+b+c=480
b/3=a
c/2=a
a /-----/
b /-----/-----/-----/
c /-----/-----/-----/-----/-----/-----/
480/10=48
a=48
b=48×3=144
c=144×2=288