Question

From a tap of inner diameter 0.75cm, water flows at the rate of 7m/s . Find the volume in l of water delivered by the pipe in 30mins

Answer 1

$<b>$volume of a cylinder = πr^2h
now we just have to put the values

= 22/7 *0.75cm*0.75cm*7m( * is the multiplication sign)

= both the 7 will cancel out from each other

= after multiplying the leftover we will get

$\sf\implies\: 12.375 m^{2}$

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