Question

u Uu- ce 63. The pipes P and Q take 4 hrs and 6 hrs to fill a tank respectively. When waste pipe R is opened with P and Q the empty tank is filled in 24 hrs. In what time does waste pipe R empty a full tank of water? a) 2 hrs b) 2hrs. 30 mm. c) 2 hrs. 40 mm d) 4hrs.

11th - 12th Class

Maths

Solution

4.0 (1 ratings)

( left(0^{prime}right) ) 4hr ( Q=6 mathrm{m} ) ( R=gamma ln r ) Sffeetwe ( =frac{1}{4}+frac{1}{6}-frac{1}{x}=frac{1}{24} ) [ begin{aligned} frac{1}{x} &=frac{1}{4}+frac{1}{6}-frac{1}{29} &=frac{9}{24} h x &=frac{24}{9} h^{8} &=2 text { hr } frac{2}{3} times 60 text { in } &=2 text { wr } i text { abmen } end{aligned} ]