Question

If different words are formed using all the letters from the word 'INDIANIDOL' in which 'a' denotes number of words which contains 'INDIA' but not 'INDIAN' and 'b' denotes number of words which contains 'INDIAN' but not 'IDOL' then

• A. $a+b=6!+2$
• B. $a+b=6!-2$
• C. $a-b=4.5!+2$
• D. $a-b=4.5!-2$

Answer 1

Answer: (B), (C)

Correct answer is (b) $a+b=6!-2$ Correct answer is (c) $a-b=4.5!+2$