The pipes P and Q take 4 hrs and 6 ...
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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 O the aty tank is filled in 24 hrs. In what time does waste pipe R empty a full tank of water? b) 2hrs. 30 mm. c) 2 hrs. 40 mm d4hrs. a) 2 hrs

11th - 12th Class
Maths
Solution
32
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( p^{prime}-1 ) qur ( Q=6 mathrm{m} ) ( R=x ln r ) ( =2 h r, 4 ) omen
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