In how many ways can a student choose a ...

In how many ways can a student choose a programme of 5 courses if 9 courses are available and 2 specific courses are compulsory for every student?

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JBD PUBLICATION-PERMUTATIONS AND COMBINATIONS-EXAMPLE

If 10Cr=^10C2 find the values of r.
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A bag contains 5 black and 6 red balls. Determine the number of ways i...
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In how many ways can a student choose a programme of 5 courses if 9 co...
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How many chords can be drawn through 21 points on a circle?
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Out of 18 points in a plane, no three are in the same straight line ex...
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How many 3-digit numbers can be formed from the digits 1, 2, 3, 4 and ...
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How many 3-digit numbers can be formed from the digits 1, 2, 3, 4 and ...
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If (n!)/(2!(n-2)!):(n!)/(4!(n-4)!) =2:1. Find the value of n.
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show that 2^16 divides 32!. also, find the largest value of n for whic...
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What is the largest power of 2 contained in 32!.
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How many different words (with or without meaning) can be formed using...
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Find the value of n such that ""^nP5 = 42 ""^nP3,,n gt 4.
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Find n if "^(n-1)P3 : "^nP4 =1:9.
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Find r if "^5Pr =2 "^6P(r-1).
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How many words, with or without meaning can be made from the letters o...
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How many words, with or without meaning can be made from the letters o...
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How many words, with or without meaning can be made from the letters o...
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How many words can be formed by using the letters of the word 'ORIENTA...
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There are three prizes to be distributed among 6 students. In how many...
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