viewquestions/9091/Amit buys few grams of gold at the poles as per the instruction of one of his friends He hands over the same when he meets him at the equator Will the friend agree with the weight of gold bought If not why Physics Cbse class 11

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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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|leo

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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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