Answer the below three questions on the basis of the information given below:

An objective question paper having 100 questions was taken by 100 students having roll no. 1 to 100. There was no negative marking in this question paper. Question number ‘n’ was of ‘n’ marks. Question number 1 was correctly attempted by all of the students. Question number 2 was correctly attempted by the students having roll no. 2,4,6,8…100. Question No. 3 was correctly attempted by the students having roll no. 3,6,9,…99. Question no.4 was correctly attempted by the students having roll no. 4,8,12,16….100 and such a pattern can be generalized for all 100 questions.

Q1.
The number of students who correctly attempted precisely 2 questions were:
(A)4           (B)18          (C)25          (D)None of these

Q2.
How many questions contributed 1 or more marks in the class average?
(A)2         (B)4         (C)10        (D) 9

Q.3
The number of students who correctly attempted precisely 3 questions were:
(A)4            (B)25           (C)625         (D)None of these