alleryयदि P = {1, 2, 3, 4, 5} और Q = {4, 5, 6, 7} है, तो कितने अवयव P में हैं लेकिन Q में नहीं हैं?
A2
B4
C3
D5
Answer & Solution
Correct answer: C. 3
P में से उभयनिष्ठ 4 और 5 को हटाने पर 1, 2 और 3 बचते हैं (अर्थात 3 अवयव)।
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