Question

The number of ways of arraigning 6 players to throw the cricket ball so that the oldest player may not throw first is

• A. $120$
• B. $600$
• C. $720$
• D. $715$

Answer 1

The correct option is B $600$

for first place we have

$\to 5$ options only

(rest without no restriction)

$\downarrow \downarrow \downarrow \downarrow \downarrow \downarrow 554321$

$\downarrow$

(one used)

$5\times 5!$

$=5\times 120$

$=600$ Ans.