alleryএটা পাম্পে এটা টেংক 5 hours-ত ভৰ্তি কৰে, কিন্তু এটা বিন্ধাৰ সৈতে ই 6 hours সময় লয়। বিন্ধাটোৱে অকলে ইয়াক খালী কৰিব
A30 hours
B11 hours
C25 hours
D20 hours
Answer & Solution
Correct answer: A. 30 hours
বিন্ধাৰ হাৰ হ'ল প্ৰতি ঘণ্টাত 1/5 - 1/6 = 1/30, গতিকে খালী কৰিবলৈ 30 hours লাগিব।
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