Răspuns :
Răspuns:
25%
40%
11%
25%
Explicație pas cu pas:
360 ........... 100%
90 ...................x%
x = 90*100/360 = 9000/360 = 25%
1000 ...........100%
400..................x%
x = 400*100/1000 = 40000/1000 = 40%
2800 ............100%
308 ...................x%
x = 308*100/2800 = 30800/2800 = 11%
80 ................100%
20 .....................x%
x = 20*100/80 = 2000/80 = 25%