Răspuns
Explicație pas cu pas:
a) 100%-25%-12.5%-18.75%-6.25%= 37.5% au preferat matematica
b) 2elevi -----6.25%
x elevi ------18.75% x= 18.75*2 /6.25 = 6 elevi (biologie)
y elevi ------12.5% y= 12.5*2/6.25= 4elevi (chimie)
t elevi ------- 25% t= 25*2/6.25= 8 elevi (fizica)
z elevi ------ 37.5% z= 37.5*2/6.25= 12elevi (mate)
