JEE Advanced 2019 Paper 2

If n(B) = 1, n(A) = 6 ⇒no. of ordered pairs (A,B) = 6
If n(B) = 2, n(A) = 3 ⇒no. of ordered pairs (A,B) = 180
If n(B) = 2, n(A) = 6 ⇒no. of ordered pairs (A,B) = 15
If n(B) = 3, n(A) = 4 ⇒no. of ordered pairs (A,B) = 180
If n(B) = 3, n(A) = 6 ⇒no. of ordered pairs (A,B) = 20
If n(B) = 4, n(A) = 6 ⇒no. of ordered pairs (A, B) = 15
If n(B) = 5, n(A) = 6 ⇒no. of ordered pairs (A,B) = 6
⇒Total number of ordered pairs (A, B) = 422.