60 words can be made using all the letters of the word BHBJO, with or without meaning. If these words are…
60 words can be made using all the letters of the word BHBJO, with or without meaning. If these words are written as in a dictionary, then the $50^{\text {th }}$ word is :
JBBOH
OBBJH
OBBHJ
HBBJO
Solution
$\mathrm{B} \mathrm{B} \mathrm{H} \mathrm{J} \mathrm{O}$
B____$4 !=24$
H____$\frac{4 !}{2 !}=12$
j____$\frac{4 !}{2 !}=12$
O B B H J
O B B J H $\rightarrow 50^{\text {th }}$ rank