Question

The no. of ways in which 30 marks can be signed to 8 questions giving not less than 2 marks to any questions.

• A. 21C₈
• B. 20C₇
• C. 30C₇
• D. ²¹C₇

Answer 1

Answer: (D)

²¹C₇

Answer 2

First 2 marks are assigned to each question.

Remaining - 14 marks, 8 questions.

No. of ways =.$14 + 8 + 1C_{8 - 1} =^{21}C_{7}$.