1. Suppose A. A. ..... Ao are thirty sets each havings elements and B. B..... B., are n sets each with303 elements, let UA, UB, =S and each elementof S belongs to exactly 10 of the A's and exactly 9 ofthe B,'s, then n is equal to :

Suppose A_1,A_2 …., A_30 are thirty sets, each having 5 elements and B_1,B_2 ,….., B_n are n sets , each with 3 elements, let uu_(i=1)^(30)A_i = uu_(j=1)^(n)B_j=S and each element of S belongs to exactly 10 of A'_i and exactly 9 of B'_j . Then n is equal to :

Suppose A1,A2,…..A30 are thirty sets each having 5 elements and B1,B2,…….Bn are n sets each having 3 elements.Let each elements of S belongs to exactly 10 of A1,'s and exactly 9 of B1's.Then find the value of n.

Suppose a_1,A_2,.....,A_30 are thirty sets each with five elements and B_1, B_2,.......,B_n are n sets each with 3 elements. Let uuu_(i = 1)^30 A_i = uuu_(i=1)^n = S. Assume that each element of S belongs to exactly 10 elements of A_i and exactly 9 of B_j. Find n

Suppose A_1,A_2,.....,A_30 are thirty sets each with five elements and B_1, B_2,.......,B_n are n sets each with 3 elements. Let uuu_(i = 1)^30 A_i = uuu_(i=1)^n = S . Assume that each element of S belongs to exactly 10 elements of A_i and exactly 9 of B_j . Find n

Suppose A_1 , A_2 ..... A_30 are thirty sets each with five elements and B_1,B_2....B_n are n sets each with three elements such that cap_(i=1)^30 A_i = cap_(j=1)^n B_j = S . If each elements of S belongs to exactly ten of the A_i s and exactly nine of the B_j's then the value of n is