Răspuns :
VI A regula de trei simpla
75%..................18 elevi
100%..................x elevi
x=100*18/75=24 elevi
VI B
30elevi................100%
27elevi....................x%
x=27*100/30=90% promovabilitate
VI C
100%........................25elevi
96%............................x elevi
x=96*25/100=24 elevi promovati