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IMPORTANT
Earn 100
The number of positive integers less than having only odd digits is
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Important Questions on Permutation and Combination
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The number of ways a committee of people can be chosen from a panel of people is
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Number of ways of dividing men and women into couples, with a man and woman each is
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The number of diagonals of a polygon with sides is
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A password is set with distinct letters from the word LOGARITHMS. How many such passwords can be formed?
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If and then
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IMPORTANT
In a group of boys and girls, a team consisting of four children is formed such that the team has atleast one boy. The number of ways of forming a team like this is
