Join ExamsbookAnswer : 4. "240"
In the below word how many words are there in which R and W are at the end positions?
RAINBOW5
Q: In the below word how many words are there in which R and W are at the end positions? RAINBOW
- 1120false
- 2180false
- 3210false
- 4240true
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Answer : 4. "240"
Explanation :
Answer: D) 240 Explanation: When R and W are the first and last letters of all the words then we can arrange them in 5!ways. Similarly When W and R are the first and last letters of the words then the remaining letters can be arrange in 5! ways. Thus the total number of permutations = 2 x 5! = 2 x 120 = 240
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