alleryA میں 10 دن اور B 15 دن لگتے ہیں۔ متبادل دنوں پر کام کرتے ہوئے، پہلے، وہ کام مکمل کرتے ہیں۔
A12 دن
B11 دن
C10 دن
D15 دن
Answer & Solution
Correct answer: A. 12 دن
ہر دو دن کا چکر 1/10 + 1/15 = 1/6 کرتا ہے، لہذا 6 سائیکلوں میں 12 دن لگتے ہیں۔
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