जॉइन Examsbookउत्तर : 2. "1024"
In how many ways can 5 letters be posted in 4 letter boxes?5
प्र: In how many ways can 5 letters be posted in 4 letter boxes?
- 1512false
- 21024true
- 3625false
- 420false
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उत्तर : 2. "1024"
व्याख्या :
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
समान प्रश्न
Since Nithya and Suganya exchange places, so Rita’s new position is the same as Monika’s earlier position. This position is 17th from the right and 10th from the left. Therefore Number of girls in the row = (16 + 1 + 9) = 26.