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In How Many Ways Can 5 Letters Be Posted In 4 Letter Boxes? |
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Answer» FIRST letter can be posted in 4 letter boxes in 4 WAYS. SIMILARLY second letter can be posted in 4 letter boxes in 4 ways and so on. Hence all the 5 letters can be posted in = 4 X 4 x 4 x 4 x 4 = 1024. First letter can be posted in 4 letter boxes in 4 ways. Similarly second letter can be posted in 4 letter boxes in 4 ways and so on. Hence all the 5 letters can be posted in = 4 x 4 x 4 x 4 x 4 = 1024. |
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