Verbal Reasoning - Arithmetic Reasoning - Discussion
Discussion Forum : Arithmetic Reasoning - Section 2 (Q.No. 28)
28.
Between two book-ends in your study are displayed your five favourite puzzle books. If you decide to arrange the five books in every possible combination and moved just one book every minute, how long would it take you ?
Answer: Option
Explanation:
Clearly, number of ways of arranging 5 books = 5 ! = 5 x 4 x 3 x 2 x 1 = 120.
So, total time taken = 120 minutes = 2 hours.
Discussion:
3 comments Page 1 of 1.
Rithvick said:
4 years ago
Cannot understand this. Please explain in detail.
(1)
Harsh said:
4 years ago
Can not understand. Please explain in detail.
Darshan said:
5 years ago
Understand clearly, Thanks.
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