Three taps, A, B and C can fill a tank in 6 hours, 8 hours and 12 hours, respectively. Tap D can empty out the tank in 4 hours. The four taps,A,B,C and D, are allowed to run for 4 hours and after that tap D is closed. How long will it take for the 3 taps to fill the remaining part of tank?
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shanyakanchan13:
I don't understand
apki writing mujhe samjh mai nhi aa rahi hai
where u didnt understand
tell me bro
mujhe ap likh ke dedo
with totally language
say in eng
i written in english only na
atleast numbers i wrote understand or not
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