15c6+15c7+16c8= 17cx. Find x

X= 8 or 9

  • Interview Candidate
  • 2
  • 1803

Showing Answers 1 - 2 of 2 Answers

bhushan suryavanshi

  • Mar 28th, 2007
 

ans is 8.
simply apply this this formulae two times

nCr+nCr-1=n+1Cr...u will get the answer.

  Was this answer useful?  Yes

Give your answer:

If you think the above answer is not correct, Please select a reason and add your answer below.

 

Related Answered Questions

 

Related Open Questions