alleryX 16 دنوں میں اور Y 48 دنوں میں ایک کام مکمل کرتا ہے۔ دونوں مل کر کام کرتے ہوئے اسے مکمل کرتے ہیں۔
A10 دن
B12 دن
C14 دن
D16 دن
Answer & Solution
Correct answer: B. 12 دن
1/16 + 1/48 = 4/48 = 1/12 کام فی دن، تو 12 دن۔
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