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Let Ui = 1 Xi for i ∈ 50 = Ui = 1 for i ∈ n Yi = T, where each Xi contains 10 elements and each Yi contains 5 elements. If each element of the set T is an element of exactly 20 of sets Xi 's and exactly 6 of sets Yi 's, then n is equal to : (1) 45 (2) 15 (3) 50 (4) 30
the approach says that in xi i need to divide 500/20 but why idk
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@Apu
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+solved @user to close the thread when your doubt is solved. Mention the user who helped you solve the doubt. This will be added to their stats.uh can u send the q? like the pic
uh can u send the q? like the pic
Nvm i got it
Fsolved
30?
yep
+fsolved
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