alleryایک پائپ 25 لیٹر ایک منٹ کا اضافہ کرتا ہے، ایک لیک ایک منٹ میں 5 لیٹر کو نکالتی ہے۔ 400 لیٹر کا ٹینک بھرتا ہے۔
A25 منٹ
B16 منٹ
C20 منٹ
D80 منٹ
Answer & Solution
Correct answer: C. 20 منٹ
خالص آمد 20 لیٹر فی منٹ ہے، لہذا 400/20 = 20 منٹ۔
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