Question

Ten IIT and 2 DCE students sit in a row. The number of ways in which exactly 3 IIT students sit between 2 DCE students is

a. ¹⁰C₃ x 2! x 3! x 8!

b. 10! 2! 3! x 8!

c. 5! x 2! x 9! x 8!

d. none of these

Answer 1

Correct option is a. ¹⁰C₃ x 2! x 3! x 8!