alleryA 15 دنوں میں اور B 10 دنوں میں کوئی کام کر سکتا ہے۔ A 5 دنوں کے لیے اکیلے کام کرتا ہے، پھر B شامل ہوتا ہے۔ B A for کے ساتھ کام کرتا ہے۔
A4 دن
B6 دن
C3 دن
D5 دن
Answer & Solution
Correct answer: A. 4 دن
A صرف 5/15 = 1/3 کرتا ہے؛ بقیہ 2/3 پر 1/6 فی دن 4 دن لگتے ہیں۔
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