Question

There are 5 English, 4 Sanskrit and 3 Telugu books. Two books from each group are to be arranged in a shelf. The number of possible arrangements is:

• A. $\left(180\right)6!$
• B. $\left(12\right)7!$
• C. $7!$
• D. $180$

Answer 1

The correct option is A $\left(180\right)6!$

There are 5 books of English , 4 sanskrit and 3 telugu books and Selection of two books from each group will be ${}^5{C}_2{\times }^4{C}_2{\times }^3{C}_2=180$
Number of possible arrangements $=\left(180\right)6!$