Subject
Quantitative Aptitude
Topic
Pipes & Cistern
Two Pipes A and B can fill a tank in 20 & 30 minutes respectively.Both the Pipes are being open, Find when A must be turned be off so that the tank may be just filled in 15 minutes ?
Two Pipes A and B can fill a tank in 20 & 30 minutes respectively.Both the Pipes are being open, Find when A must be turned be off so that the tank may be just filled in 15 minutes ?
ক)
after 10 minutesখ)
after 20 minutesগ)
after 15 minuteঘ)
noneExplanation
A যেহেতু মাঝ পথে বন্ধ হয়ে গেছে, তাহলে পাইপ B শেষ সময় পর্যন্ত চালু ছিল । পাইপ B মোট ১৫ মিনিটে পূর্ণ করতে পারে অর্ধেক । তাহলে অবশিষ্ট অর্ধেক পাইপ A পূর্ণ করেছিল ২০ মিনিটের অর্ধেক সময়ে অর্থাৎ ১০ মিনিটে ।Related questions
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