Question

intr-o clasa .daca se aseaza cate 2elevi in banca raman 3 elevi in picioare ,iar daca se aseaza cate 3 elevi in banca raman 3 banci libere . Cati elevi sunt in acea clasa?

Answer 1

2e intr-o banca ...................3 e
3e intr-o banca ...................3 banci
p1)3*2+3=9
p2)3-2=1
p3)9:1=9
p4)9+3=12 banci
p5)12*2+3=27 elevi