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NAGEEN PRAKASHAN-PERMUTATION AND COMBINATION -Exercise I
- The sum of all five digit numbers formed with the digits 1,2,3,4,5 wit...
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- lfloor24 is divisible by:
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- No. of selections of one or more balls from 10 white, 9 black and 4 re...
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- No. of positive integral solutions of the equation abc = 42 is:
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- No. of diagonals of a polygon are 170. No. of sides in this polygon ar...
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- If 7 points out of 12 are in the same straight line, then the number o...
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- If ""^(n)C(r -1) = 36, ""^(n)C(r) = 84 " and " ""^(n)C(r +1) = 126, th...
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- If all the words formed with the letters of the word 'RANDOM' arranged...
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- How many 10-digit numbers can be formed by using digits 1 and 2
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