A tank has two inlet taps P and Q and the outer taps R. When empty, the tank can be filled by the tap P...

      

A tank has two inlet taps P and Q and the outer taps R. When empty, the tank can be filled by the tap P alone in 4 ½ hours or by tap Q alone in 3 hours when full, the tank can emptied in 2 hours by tap R. The tank is initially empty. Find the time taken to fill the tank
(a)(i) If tap R is closed and taps P and Q are opened at the same time
(ii) If all the three taps are opened at the same time
(b) The tank is initially empty and the three taps are opened as follows
P at 8:00am
Q at 8.45am
R at 9.00am
(i) Find the fraction of the tank that would be filled by 9.00am
(ii) Find the time the tank would be fully filled up

  

Answers

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Kavungya answered the question on September 23, 2019 at 06:01

Next: The masses in kilogram of 20 bags of maize were 90 94 96 99 95 102 105 95 96 102 99 105 90 94 99 98 100 96 102 105 Using an assumed mean of 96Kg, calculate the mean mass per bag of the maize
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