question_answer

Student in a Hotel Management College were instructed to bake a cake. The table alongside shows the time taken for the students to complete the task. Students longer than 2 hours received a penalty. What percentage of students received a penalty?

Time t (min )	Frequency
\[55\le t<60\]	4
\[60\le t<70\]	2
\[70\le t<80\]	5
\[80\le t<90\]	3
\[90\le t<100\]	10
\[100\le t<110\]	8
\[110\le t<120\]	10
\[120\le t<130\]	13
\[130\le t<140\]	5

A)  43                               

B)  46

C)  45                               

D)  30