A large tanker can be filled by two by two pipes A and B in 60 minutes and 40 minutes respectively. How many minutes will it take to fill the tanker from empty state if B is used for half the time and A and B fill together for the other half?
A. 15
B. 30
C. 27.5
D. কোনোটিই নয়
JUIBA (Unit-G)Set-Dমানসিক দক্ষতা(IQ)গাণিতিক সমস্যাIQ-4 (Topic Practice)JU - ⚡ অনলাইন প্রশ্নব্যাংক দেখুন 💥
সঠিক উত্তরঃ
B.
30
Explanation:
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