The number of students in a class who have answered correctly, wrongly, or not attempted each question in an exam, are listed in the table below. The marks for each question are also listed. There is no negative or partial marking.

Q No	Marks	Answered Correctly	Answered Wrongly	Not Attempted
1	2	21	17	6
2	3	15	27	2
3	1	11	29	4
4	2	23	18	3
5	5	31	12	1

What is the average of the marks obtained by the class in the examination?

Based on the given statements, select the most appropriate option to solve the given question.

If two floors in a certain building are 9 feet apart, how many steps are there in a set of stairs that extends from the first floor to the second floor of the building?

Statements:
(I) Each step is $${3 \over 4}$$ foot high.
(II) Each step is 1 foot wide.

Select the alternative meaning of the underlined part of the sentence.

The chain snatchers took to their heels when the police party arrived.

Which of the following options is the closest in meaning to the sentence below?

She enjoyed herself immensely at the party.