There are total 8 letters in the given word out of which 4 are consonants (R, P, T, N) and 4 are vowels (E, U, I, O) we have to form a word of 8 letters which have first and last letter consonants. In the beginning and in the last we put 2 consonants out of 3 by 4P2 = 12 methods. Now, in between first and last letters 6 letters may be put in 6P6 = 6! Therefore, number of words comprises consonant in first and in last will be = = 6! × 12 = 720 × 12 = 8640
How many boxes are between the one who at second place from the bottom and D?
Which of the following pair of boxes were placed at the bottom most position?
Who among the following organized party immediately after B?
What is the difference between the floor number of K and P?
Who lives two floors below X (same flat type)?
If all the persons from the top of the building live in ascending order of their experience then, the floor of how many persons remains unchanged?
F’s height and I’s age is?
Who among the following person lives three floors above Q?
How many persons live between Amisha’s floor and Esha’s floor?
Who among the following is senior to SI and junior to ASP?
