Join ExamsbookAnswer : 2. "1024"
In how many ways can 5 letters be posted in 4 letter boxes?5
Q: In how many ways can 5 letters be posted in 4 letter boxes?
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Answer : 2. "1024"
Explanation :
Answer: B) 1024 Explanation: 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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