Latest exam Aptitude Question SOLUTION: The problem is P(n,2)=42, find n. The instructor gave the answer for n, which is 7. I figured out the formula knowing the answer is 7, which is n!/(n-k)! I need to know the formula

• Placement Papers
• /
• exam
• /
• Numerical Ability

exam Question Papers:

(#M40145193) EXAM Numerical Ability question Keep an EYE

The problem is P(n,2)=42, find n. The instructor gave the answer for n, which is 7. I figured out the formula knowing the answer is 7, which is n!/(n-k)!
I need to know the formula to figure out how to get the value of n. Thank you.

Asked In exam (9 years ago)

Unsolved

Is this Puzzle helpful?   (0)   (0) Submit Your Solution