Question

math class 12 4.2-question 12

Water flows through a cylindrical pipe, whose inner radius is 1 cm, at the rate of 80 cm / s in an empty cylindrical tank, the radius of whose base is 40 cm. What is the rise of water level in tank in half an hour

1. a-b=4
   

1. Solve by  substitution method
   

•  a  -  b = 4

1. I want to learn 9th class maths exercise 2.4 4 1st problem

1. I want to learn 9th class maths exercise 2.4 4 1st problem

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