Question

Mr. Jackson went on a road trip in his car. In $1^{\text{st}}$ hour, he travels $57$ miles. In $2^{\text{nd}}$, $3^{\text{rd}}$ and $4^{\text{th}}$ hours, he travels 49 miles, 60 miles and 65 miles, respectively, before reaching to a gas station. On an average, the distance travelled by him in an hour is miles.

Answer 1

Representing the distance covered by Mr. Jackson in each hour in the table below:
Distance Travelled on an Hourly Basis

Time	Distance Covered (in miles)
$1^{\text{st}}$ hour	57
$2^{\text{nd}}$ hour	49
$3^{\text{rd}}$ hour	60
$4^{\text{th}}$ hour	65

The average distance covered by Mr. Jackson in an hour
$=\frac{\text{Total distance covered}}{\text{Total duration (in hours)}}$
$=\frac{57+49+60+65}{4}$ miles/hour
$=\frac{231}{4}$ miles/hour
$=57.75$ miles/hour

$\therefore$ On an average, the distance travelled by Mr. Jackson in an hour is $57.75$ miles.