Question

Two different pipes used to fill swimming pool. figure a is a combination of two pipes each having radius of 8 cm. figure b is a pipe having a radius of 15 cm. if the flow of water coming out of pipes is the same in both the class, which will the swimming pool faster?

Answer 1

$Given \: Figure \: a \: is \: a \: combination \\of \: two \: pipes \:each \: having \: radius \: of \:8 \:cm$

$Total \: radius \: of \: two \: pipes \\= 2 \times 8\\ = 16 \: ---(1)$

$Radius \:of \:the \: second \: pipe = 15 \:cm \:--(2)$

$if \:the\: flow\: of \:water \:coming\: out \:of\\ pipes \:is \:the\: same \:in \:both \:the\:pipes \:then \\\green { The \: swimming \:pool \: which \:has }$

$\green {figure \: a \: filled \: first }$

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