Q. 3 please solve

Q. 3 please solve QUESTIONS L A barrel full of beer has 2 Laps. one midway which haws a litre in 6 minutes and the other nt the which draws a litre in rninutes. The lower tap is normally used afts•r the level in the barrel is lower midway. capncity of tho barrel is 36 litrOs, A now the lower tap *'hen the barrel is and draws nat Anne beer. As a result the lower tap has uæd24 minuteg befin•e the lime F'•r langwns the beer drawn out by the new usgigt.ant? 6) 10 mine. 16 rninB. 32 rnins •Z Pipe A can fill a cistm•n in 36 minutes and B in minutes. If both the pipes ure opened together. When should pipe B be closed so that the cistern may be full in 24 minutes? Q and R respectively tnke 8. 10 and 12 hours to fill the empty tank or empty the full tank. In the first hour, pipes p and R work ag inlet and Q work us outlet, In the second hour, pipes P and Q work inlet and pipe R as outlet. In the third hour ptpe.s Q Lind R work as inlet and pipe P outlet ntul tho xuos on like this. When will the cistern filled? In the Sth hour. 4b) In the 9th hour, In the 10th hour. (d) In the 11th hour. Thon• nre •2 inlet pipes and an Outlet pipe. Tho on;riency Of of the inlet pipes ia double than that of the other. Also. the effieiencyofthe not.let. is half the losser efficient inlet pipe. empty tank gets filled in 16 hours when all the pipeA are opened. How tnuny hours will be taken to fill the empty tank when the 'leseer• efficiency inlet pipe is plugged and the regt kept (a) 8 ming. 12 mins. (b) 9 mins. (d) 16 mins. 8. Pipes P. Q and R are attached to a tank and each act as either an inlet or outlet pipe. Pipes P, opened? 10) 33 — hours (c) 100hour,8 26 — hours (d) BO hours

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