Question

in 3 cutii sunt 80 bomboane. in prima cutie sunt de 5 ori mai multe decat in a doua cutie iar in a treiasunt o treime din nr. de bomboane aflate in celelalte doua.Cate bomboane sunt in fiecare cutie ?

Answer 1

3×80=240bomboane
240×5=10200

Answer 2

A+b+c=80 A×5=b (A+b):3=c;c×3=a+b C×3+c=80 C=80:4=20=>a+b=60=>a=60-b 60-b)×5=b 300-5×b=b 300=b×6=>b=50=>a=10