A car travels 1 mile in 75 seconds. At this rate, how many miles will the car travel in 1 hour?

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Answer 1 · 2016-09-09T15:01:27

Car will travel $48$ miles in $1$ hour

In $1$ hour we have $60xx60=3600$ seconds.

In $75$ seconds, the car travels $1$ mile,

so in $1$ second it travels $1/75$ miles and

in $3600$ seconds, it will travel $1/75xx3600$ miles

i.e $1/(3xx5xx5)xx(3xx3xx2xx2xx2xx2xx5xx5)$ miles

= $1/(cancel3xxcancel5xxcancel5)xx(cancel3xx3xx2xx2xx2xx2xxcancel5xxcancel5)$ miles

= $48$ miles