exam
Maths Puzzle
In how many ways a President, VP and Waterboy can be selected from a group of 10 people.
A.
10C3
B.
10P3
C.
240
D.
360
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exam Other Question
A question paper consists of three sections 4,5 and 6 questions respectively. Attempting one question from each section is compulsory but a candidate need not attempt all the questions. In how many ways can a candidate attempt the questions?
A.
209
B.
(4!-1)(5!-1)(6!-1)
C.
119
D.
29295
In a hockey championship, there are 153 matches played. Every two team played one match with each other. The number of teams participating in the championship is:
A.
18
B.
19
C.
17
D.
16