alleryA، B اور C 30، 20 اور 60 دنوں میں اکیلے کام مکمل کر سکتے ہیں۔ تینوں کو مل کر ضرورت ہے۔
A12 دن
B8 دن
C10 دن
D15 دن
Answer & Solution
Correct answer: C. 10 دن
روزانہ کام ہے (2 + 3 + 1)/60 = 6/60 = 1/10 کام کا، تو 10 دن۔
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