alleryاکیلے ایک پائپ 15 منٹوں میں ٹینک کو بھرتا ہے۔ دوسرے پائپ کے ساتھ 6 منٹ لگتے ہیں۔ دوسرا پائپ اکیلے لیتا ہے
A10 منٹ
B12 منٹ
C8 منٹ
D9 منٹ
Answer & Solution
Correct answer: A. 10 منٹ
دوسری پائپ کی شرح 1/6 - 1/15 = 3/30 = 1/10 ہے، تو 10 منٹ۔
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