Question

The 50^th word in the dictionary using the letters B, B, H, J, O is 

(1) OBBJH 

(2) OBBHJ 

(3) JHBBO 

(4) BBHOJ

Answer 1

Correct option is (1) OBBJH 

Number of words staring with ‘B’ = 4! = 24

Number of words staring with ‘H’ = 4! / 2! = 12

Number of words staring with ‘J’ = 12

49^th word = OBBHJ 

50^th word = OBBJH