QJEEM20Maa41b: JEE Main 2020 Mathematics - Class 11 JEEM20Maa41b Solution: Let X = {n ∈ N : 1 ≤ n ≤ 50}. If A = {n ∈ X: n is a multiple of …

Let X = {n $$\in$$ N : 1 $$\le$$ n $$\le$$ 50}. If
A = {n $$\in$$ X: n is a multiple of 2} and
B = {n $$\in$$ X: n is a multiple of 7}, then the number of elements in the smallest subset of X containing both A and B is ________.