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Old 02-28-2008, 09:52 AM
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Default In a hotel, rooms are numbered from
In a hotel, rooms are numbered from 101 to 550. A room is chosen at random. What is the probability that room number starts with 1, 2 or 3 and ends with 4, 5 or 6?
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Old 07-30-2008, 06:44 PM
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101 102 .....550
1 no. - 1,2,3
2no. - 0 ,1 .....9
3 no. - 4 ,5 ,6
total no. of ways 90 ..
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