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Pipe A and Pipe B each fill a tank, shown on a line graph of litres vs minutes. Pipe A's line rises from (0,0) to (10, 50). Pipe B's line rises from (0,0) to (10, 80).
If both pipes are opened together, how many litres will be in the tank after 10 minutes?

Class 8Reading Line GraphsCoordinate Geometry
  • A145
  • B260
  • C130
  • D115

Step-by-Step Solution

After 10 min Pipe A gives 50 L and Pipe B gives 80 L. Together = 50 + 80 = 130 L.
Answer: C) 130

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