Question

Match the Column I with their respective answer in Column II.

• A. $\frac{1}{8}$
• B. $\frac{1}{6}$
• C. $120$
• D. $110$

Answer 1

$\frac{5!\times 0!}{1!}=\frac{5!\times 1}{1}$
$=5\times 4\times 3\times 2\times 1=120$

$\frac{(7-7)!}{3!}=\frac{0!}{3!}$
$=\frac{1}{3\times 2\times 1}=\frac{1}{6}$

$\frac{0!+2!}{4!}=\frac{1+(2\times 1)}{4\times 3\times 2\times 1}$
$=\frac{3}{24}=\frac{1}{8}$

$\frac{11!}{0!\times 9!}=\frac{11!}{1\times 9!}=\frac{11\times 10\times 9!}{9!}$
$=11\times 10=110$