Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The letters of the following words are arranged and words thus formed are kept as in dictionary then match the ranks of the following words.
Word Rank
(A) LATE (1) 23
(B) TOSS (2) 10
(C) MIRROR (3) 21
(D) RACE (4) 19
(5) 14

Permutations and Combinations

Solution:

LATE: AELT .
Rank : 2.3! + 0.2! + 1.11 + 1! = 14
TOSS ; OSST
Rank : $\frac{3}{2!} \times 3! + 0.2! + 0.1! + 1! = 10$
MIRROR :IMORRR
Rank : $\frac{1.5!}{3!} + 0.4! + \frac{1.3!}{3!}+ \frac{1.2!}{2!} + 1! = 23 $
RACE : ACER
Rank ; 3.3! + 0 + 0 + 1! = 19