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Model Papers
Akshay throw a die again and again until three fours are obtained. Find the probability of obtaining the third four in the sixth throw of die by Akshay.
cbse
class12
modelpaper
2012
sec-c
q28
math
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asked
Jan 25, 2013
by
thanvigandhi_1
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Arjun throw a die again and again until three fours are obtained. Find the probability of obtaining the third four in the fourth throw of a die.
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A die is thrown again and again untill three sixes are obtained. Find the probability of obtaining the third six in the sixth throw of the die.
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A die is thrown again and again until three sixes are obtained. Find the probability of obtaining the third six in the sixth throw of the die.
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A die is thrown again and again untill three sixes are obtained. Find the probability of obtaining third six in sixth throw of dice.
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A furniture firm manufactures chairs and tables, each requiring the use of three machines A, B and C. Production of each chair requires 2 hours on machine A, 1 hour on machine B and 1 hour on machine C. Each table requires 1 hour each on machine A and B and 3 hours on machine C. The profit obtained by selling one chair is Rs. 30 while by selling one table the profit is Rs. 60. The total time available per week on machine A is 70 hours, on machine B is 40 hours and on machine C is 90 hours. How many chairs and tables should be made per week so as to maximise profit? Formulate the problem as LPP and solve it graphically.
cbse
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Given three identical boxes I, II and III each containing two coins. In box I, both coins are gold coins, in box II, both are silver coins and in box III, there is one gold and one silver coin. A person chooses a box at random and takes out a coin. If the coin is of gold, what is the probability that the other coin in the box is also of gold?
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Feb 4, 2013
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Suppose a girl throws a die. If she gets a 5 or 6, she tosses a coin three times and notes the number of heads. If she gets 1, 2, 3 or 4 she tosses a coin once and notes whether a head or tail is obtained. If she obtained exactly one head, what is the probability that she threw 1, 2, 3 or 4 with the die?
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Jan 22, 2013
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