Q1Long answerExercise 3.3
1 1 1 So, = , = x 20 y 30 or, x = 20, y = 30. So, the pipe of larger diameter alone can fill the pool in 20 hours and the pipe of smaller diameter alone can fill the pool in 30 hours.
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(i) λ = –1 (ii) λ = 1 (iii) All real values of λ except + 1.