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Quick Quiz on Permutations and Combinations

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Question 1

Let n be the number of different 5 digit numbers, divisible by 4 that can be formed with the digits 1,2,3,4,5 and 6, with no digit being repeated. What is the value of n?

Question 2

Suppose you have a currency, named Rubble, in three denominations: 1 Rubble, 10 Rubbles and 50 Rubbles. In how many ways can you pay a bill of 95 Rubbles?

Question 3

The maximum number of points into which 4 circles and 4 straight lines intersect is

Question 4

In a tournament when the participants were to play a game with each other, two class players could not play more after having played 3 games each (not played between them). If the total number of games played is 84, the number of participants at the beginning was –

Question 5

In how many different ways can the 1st twelve natural no.s be divided into 3 different groups such that no.s in each group are in A.P?
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Nov 8CAT & MBA