alleryA اور B کی کارکردگی 4:5 کے تناسب میں ہے اور ایک ساتھ انہیں 20 دنوں کی ضرورت ہے۔ A اکیلے کی ضرورت ہے۔
A40 دن
B36 دن
C50 دن
D45 دن
Answer & Solution
Correct answer: D. 45 دن
کل کام 9 یونٹس x 20 دن = 180 یونٹس ہے، اور A ایک دن میں 4 یونٹ کرتا ہے، لہذا 45 دن۔
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