Question

The chain is a unit of length or distance traditionally used by land surveyors. One chain is equal to 20.1168 meters. How fast is the speed 47 chains per minute, expressed in meters per second? 460000 X m/sec

Answer 1

$1\ chain=20.1168\ m$

$1\ min =60 sec$

$47\frac{chain}{min}=47\frac{chain}{min}*1*1$

$47\frac{chain}{min}=47\frac{chain}{min}*\frac{20.1168m}{1chain}*\frac{1min}{60sec}$

$47\frac{chain}{min}=47\frac{{\color{Red} chain}}{{\color{Magenta} min}}*\frac{20.1168m}{1{\color{Red} chain}}*\frac{1{\color{Magenta} min}}{60sec}$

$47\frac{chain}{min}=\frac{47}{1}*\frac{20.1168m}{1}*\frac{1}{60sec}$

$47\frac{chain}{min}=47*\frac{20.1168}{60}*\frac{m}{sec}$

$47\frac{chain}{min}=15.758*\frac{m}{sec}$

ANSWER: ${\color{Red} 47chain/min=15.758m/sec}$

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