p = (y : 2y ≥ 6)2y ≥ 6y ≥62y = ≥ 3and Q = (y : y -3 ≤ 4)y - 3 ≤ 4y ≤ 4 + 3y ≤ 7therefore p = {3, 4, 5, 6, 7} and Q = {7, 6, 5, 4, 3....}P∩Q = {3, 4, 5, 6, 7}
