Question

The letters of word "RADHIKA" are permuted are arranged in alphabetical order as in English dictionary. The number of words the appear before the word "RADHIKA" is -

• A. 2193
• B. 2195
• C. 2119
• D. 2192

Answer 1

Answer: (A)

2193

Answer 2

Words starting form A = 6! = 720

words starting from D, H, I, K = $\frac{6!}{2!}$× 4 = 1440

Word starting form RAA = 4! = 24

RADA = 3! = 6

RADHA = 2! = 2

RADHIAK = 1

\ Number of words before RADHIKA = 2193