allery12 మంది వ్యక్తులు ఒక పనిని 15 రోజుల్లో పూర్తి చేయగలిగితే, 20 మంది వ్యక్తులు దానిని పూర్తి చేసే సమయం
A9 రోజులు
B10 రోజులు
C8 రోజులు
D12 రోజులు
Answer & Solution
Correct answer: A. 9 రోజులు
ఆ పని 12 x 15 = 180 మ్యాన్-డేస్, మరియు 180/20 = 9 రోజులు.
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