Răspuns:
Explicație pas cu pas:
n = numarul elevilor
informatica n/3
rest n - n/3 = 2n/3
astronomie
25/100 x 2n/3 = 1/4 x 2n/3 = 2n/12 = n/6
rest 2n/3 - n/6 = 4n/6 - n/6 = 3n/6 = n/2
n/2 = 12 elevi
n = 2 x 12 = 24 elevi
fie x =nr.elevi
informatica
x/3
rest x-(x/3)=2/3*x
pt.astronomie
25/100*2/3*x=50/300*x=x/6
rest
2/3*x-(x/6)=3/6*x=1/2*x=12
x=12*2=24 elevi
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Răspuns:
Explicație pas cu pas:
n = numarul elevilor
informatica n/3
rest n - n/3 = 2n/3
astronomie
25/100 x 2n/3 = 1/4 x 2n/3 = 2n/12 = n/6
rest 2n/3 - n/6 = 4n/6 - n/6 = 3n/6 = n/2
n/2 = 12 elevi
n = 2 x 12 = 24 elevi
Răspuns:
fie x =nr.elevi
informatica
x/3
rest x-(x/3)=2/3*x
pt.astronomie
25/100*2/3*x=50/300*x=x/6
rest
2/3*x-(x/6)=3/6*x=1/2*x=12
x=12*2=24 elevi