allery20 मनीस-तासांची गरज आशिल्लें एक काम 5 तितलेच सक्षम लोकांच्या पंगडान करतात
A2 तास
B10 तास
C5 तास
D4 तास
Answer & Solution
Correct answer: D. 4 तास
20 मनीस-तास 5 कामगारांक भाग केल्यार 4 तास मेळटात.
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