Question

( vec{p}_{k}=5 hat{j}_{alpha}=vec{xi} )
( vec{u}^{circ} )
( frac{1}{8} quad=frac{2}{2} stackrel{N}{0} )
( sum_{F}^{beta} )
( frac{8}{1}=frac{e^{2}}{8} )
( sum_{varepsilon}^{G}left(begin{array}{c}1 2end{array}right) )
( vec{varepsilon} )

# Two pipes P, and P2 can fill a tank in 8 hours and 5 hours respectively. They are opened together, after an hour, pipe P2 is closed, in how many more hours will the tank be filled?

Solution