CAT Exam Category

A Lady invites 30 guests for dinner.The no of ways the guest can be accommodated on two round tables 13 on one and 17 on another.

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Total 30 Guests. Let us pick first 13. No of ways of picking 13 from 30 students is 30p13 = 30!/17!

Rest there are 17 students. No of way picking 17 students for 17 seats is 17!

No of ways = 30!/17! + 17!
9 years agoHelpfull: Yes(2) No(0)

CAT Other Question

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