First code word is defined to be a sequence of 5 different letters chosen from the 10 letters A, B, C, D, E, F, G, H, I, and J,
Second code word is defined to be a sequence of 5 different letters chosen from the 11 letters A, B, C, D, E, F, G, H, I,J and K.
What is the ratio of the number of code words that can be formed from First Code to the Second Code.
Choose one:
A) 1 to 1	B) 5 to 11	C) 6 to 11	D) 11 to 6	E) 11 to 5
First 6 to 11ode word can be formed from permutation of 10 letters to form 5 letters word = 10P5 = 10!/5!   Second 6 to 11ode word can be formed from permutation of 11 letters to form 5 letters word = 11P5 = 11!/6!   Ratio of the number of code words that can be formed from First 6 to 11ode to the Second 6 to 11ode   = (10!/5!) / (11!/6!)   = 10*9*8*7*6 / 11*10*9*8*7   = 6/11   Answer: 6 to 11
<result>C</result>
First code word is defined to be a sequence of 5 different letters chosen from the 10 letters A, B, C, D, E, F, G, H, I, and J,
Second code word is defined to be a sequence of 5 different letters chosen from the 11 letters A, B, C, D, E, F, G, H, I,J and K.
What is the ratio of the number of code words that can be formed from First Code to the Second Code.