allery75 ஊழியர்களில், 40 பேருக்கு Java தெரியும், 35 பேருக்கு Python தெரியும், 10 பேருக்கு இரண்டுமே தெரியாது. இரண்டுமே தெரிந்தவர்கள் எத்தனை பேர்?
A20
B10
C25
D15
Answer & Solution
Correct answer: B. 10
65 பேருக்கு குறைந்தபட்சம் ஒரு மொழியாவது தெரியும், எனவே இரண்டும் = 40 + 35 - 65 = 10.
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