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Q: In how many ways can 5 letters be posted in 4 letter boxes?

  • 1
    512
  • 2
    1024
  • 3
    625
  • 4
    20
  • Show Answer
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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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