There are 10 bulbs in a room . Each one...

There are 10 bulbs in a room . Each one of them can be operated independently. Find the number of ways in which the room can be illuminated.

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There are 10 bulbs in a room. Each one of them can be operated indipendently. Find the number of ways in which the room can be illuminated I is.

There are 5 bulbs in a room. Each one of them can be operated independently. Then the no. of ways in which the room is illuminated I is:

If there are 10 stations on a route and the train has to be stopped at 3 of them, then the number of ways in which the train can be stopped so that atleast two stopping stations are consecutive is

There are 5 teachers and 20 students. Out of them a committee of 2 teachers and 3 students is to be formed. Find the number of ways in which this can be done. Further find in hdw many of these committees. Q a particular teacher is included?

At an election, a voter may vote for any number of candidates, not greater than the number to be elected. There are 10 candidates and 4 are to be elected. If a voter votes for at least one candidate, then the number of ways in which he can vote is

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FULL MARKS-COMBINATORICS AND MATHEMATICAL INDUCTION-ADDITIONAL QUESTIONS

There are 10 bulbs in a room . Each one of them can be operated indep...
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If the letter of the word 'RACHIT' are arrenged in all possible ways a...
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Count the number of positive integers greater than 6000 and less than ...
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Find the number of integers greater than 7000 that can be formed with ...
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How many words (with or without dictionary meaning ) can be made from ...
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How many automobile license plates can be made, if each plate contains...
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If (n!)/(3!(n-4)! and (n!)/(5!(n-5)! are in the ratio 5:3 find the val...
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How many 3-digit even numbers can be made using the digits 1,2,3,4,6,7...
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If ""^(n-1)P(3): ""^(n)P(4)=1:9 find n.
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Out of 18 points in a plane, no three are in the same line except five...
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We wish to select 6 person from 8 but , if the person A is choosen , t...
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How many 3-digit numbers can be made using digit 1,2,3,4,6,7 if no dig...
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Find the number of 4-digit numbers that can be formed using the digits...
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Iff ""^(5)P(r)=""^(6)P(r-1) find r.
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How many words, with or without meaning , can be made from the letters...
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A group consists of 4 girls and 7 boys. In how many ways can a team of...
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A committee of 6 is to be choosen from 10 men and 7 women so as to con...
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Using the digits 1,2,3,4,5,6,7 a number of 4 different digits is forme...
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If ""^(22)P(r+1):^(20)P(r+2)=11:52, find r.
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If ""^(nP(r)=""^(n)P(r+1) and ""^(n)C(r)=""^(n)C(r-1) find n and r.
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A committee of 7 peoples has to be formed from 9 men and 4 women . In ...
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