Question

Joe swam at the rate of 4.5 miles per hour. Joseph swam at the rate of 1/12 of a mile per minute. Who was swimming faster? By how many miles per hour faster?

Answer 1

$Joe \: speed = 4.5 \: miles/hour ---(1)$

$Joseph \: speed = \frac{1}{12} \: miles /minute \\= \frac{1}{\cancel {12}} \times \cancel {60} \:5 \: miles/hour \\= 5 \: miles /hour \: --(2)$

/* Form (1) and (2) , we conclude that */

$\blue {Joseph \: swam \: faster \:than\: Joe .}$

$\red { Difference } = 5 - 4.5 = 0.5 \: miles/hour$

Therefore.,

$\green { Joseph \: swam \: 0.5 \: or \: \frac{1}{2} \: miles/hour }\\\green {faster \:than\: Joe}$

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