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Question Number 34850 by mondodotto@gmail.com last updated on 11/May/18
Answered by MJS last updated on 11/May/18
A.......13tank/min.B.......14tank/min.(13+14)×t1min.=12tank712t1=12t1=67min.14×t2min.=12tank14t2=12t2=2min.t=t1+t2=207min.≈2min51s
Answered by candre last updated on 11/May/18
letcallthetankcapacityTvA=T/3vB=T/4v(t)=(vA+vB)t[tmin](T3+T4)t=T27T12t=T2t=T2⋅127T=67thetimeBfillsthehalfisvBt=T2t=T2⋅4T=2thetotaltimeis2+67=207≈2,85min≈2min51,43s
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