viewquestions/11419/ Read the extract and answer the questions given below You dont know child Uncle said they were all friends of the shopkeeper They were playing tricks to tempt you to try your luck They wanted your money and they got it a To whom was uncle speaking bWhat was the shop called cFrom which lesson are these lines taken NCERT CLASS 6TH CBSE ENGLISH 2016

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A man X has 7 friends, 4 of them are ladies and 3 are men. His wife Y also has 7 friends, 3 of them are ladies and 4 are men. Assume X and Y have no common friends. Then the total number of ways in which X and Y together can throw a party inviting 3 ladies and 3 men, so that 3 friends of each of X and Y are in this party, is :-JEE MAINS-Mathematics-2017

(1) 484 (2) 485 (3) 468 (4) 469
It is related to jee mains 2017.


By:Purnima

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Answers

Total number of ways
4C0 · 3C3 · 3C3 · 4C0 + 4C1 · 3C2 · 3C2 · 4C1
+ 4C2 · 3C1 · 3C1 · 4C2 + 4C3 · 3C0 · 3C0 · 4C3
= 485

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