Please wait...
Contact Us
Contact
Need assistance? Contact us on below numbers

For Enquiry

10:00 AM to 7:00 PM IST all days.

Business Inquiry (North)

Business Inquiry (West / East / South)

OR

or

Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this number

022-62211530

Mon to Sat - 10 AM to 7 PM

In a football tournament, each team played two matches against each other.if altogether 240 matches we're played . The no. of participants team is (a) 16 (b) 18 (c) 20 (d) non of these.

Please solve this question.

 

Asked by akash980403 24th December 2018, 7:09 PM
Answered by Expert
Answer:
Having a match means selecting 2 teams from available teams
let the no. of participating teams be 'n'
nC2 × 2 = 240..............two games are played between same teams
begin mathsize 18px style fraction numerator straight n factorial over denominator open parentheses straight n minus 2 close parentheses factorial cross times 2 factorial end fraction equals 120
fraction numerator begin display style straight n open parentheses straight n minus 1 close parentheses end style over denominator begin display style 2 factorial end style end fraction equals 120 end style
n = 16 teams
Answered by Expert 26th December 2018, 10:00 AM
Rate this answer
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

You have rated this answer /10

Tags: combinations
Your answer has been posted successfully!

Chat with us on WhatsApp