Level:
Project ID:
1103066910
Accepted:
1
Clonable:
0
Easy:
1
The diagram shows the number of individual grades that the brothers Bolek, Olek and Alek received at the end of the first semester. How many percent of all grades received by the brothers are better than E?
\( 75\% \)
\( 50\% \)
\( 15\% \)
\( 25\% \)