Question

Choose the correct alternative:
The number of ways in which a host lady invite 8 people for a party of 8 out of 12 people of whom two do not want to attend the party together is

Options

• 2 × ¹¹C₇ + ¹⁰C₈

• ¹¹C₇ + ¹⁰C₈

• ¹²C₈ – ¹⁰C₆

• ¹⁰C₆ + 2!

Answer 1

¹²C₈ – ¹⁰C₆