Bank Preparation
Bank Math
ব্যাংক নিয়োগ
Probashi Kallyan Bank
Probashi Kallyan Bank-Executive officer(18.10.2019)
Pipes & Cisterns
Probashi Kallyan Bank-Executive officer(18.10.2019)
A tank has two leakages. The first leakage alone can empty the tank in 9 min and the second alone would have done it in 6 min. If water leaks out at a constant rate, how long does it take both the leakage together to empty the tank?
বিকল্পসমূহ (নিজের উত্তর যাচাই করতে ক্লিক করুন):
সঠিক উত্তর
3 (3.6 min)
