alleryஇருபது ஆண்கள் ஒரு சாலையை 18 நாட்களில் செப்பனிட முடியும். அதை 12 நாட்களில் முடிக்கத் தேவைப்படும் ஆண்களின் எண்ணிக்கை:
A24
B36
C27
D30
Answer & Solution
Correct answer: D. 30
சாலைக்கு 20 x 18 = 360 ஆள்-நாட்கள் தேவை, மற்றும் 360/12 = 30 ஆண்கள் தேவை.
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