3035
Question
A local delivery company has four packages to deliver to four different homes. If the packages are delivered at random to the four houses, how many ways are there for at least one house to get the wrong package?
A local delivery company has four packages to deliver to four different homes. If the packages are delivered at random to the four houses, how many ways are there for at least one house to get the wrong package?
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Solution
The correct option is B 23
The number of ways in which it can be done = 4! - 1 = 23 ways
23
The number of ways in which it can be done = 4! - 1 = 23 ways
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