engineering recuitment AAI ATC Junior Executive 2025 Mock Test Series Mathematics Relations and Functions
n (A) = 50, n (B) = 20 and n (A∩B) = 10, then n [(A - B) ∪ (B - A)] is
1
40
2
50
3
60
4
70
n (A) = 50, n (B) = 20 and n (A∩B) = 10, then n [(A - B) ∪ (B - A)] is