# A driver drives an average speed of 58 miles per hour. How long will it take the driver to reach a destination that is 155 km away?

### Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692

Chapter
Section

### Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692
Chapter 2, Problem 34E
Textbook Problem
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## A driver drives an average speed of 58 miles per hour. How long will it take the driver to reach a destination that is 155 km away?

Interpretation Introduction

Interpretation:

Time taken by a driver to cover a given distance is to be calculated.

Concept Introduction:

The standard unit of time is seconds(s). Time depends on the distance travelled and the speed. The mathematical representation of distance (d), speed(s) and time(t) is as follows:

t = ds

### Explanation of Solution

Given information: Speed of the driver is 58 mi/hr.

Distance to be covered by the driver is 155 km.

The conversion of kilometers (km) into miles (mi) is as follows:

1 km = 0.6214 mi

Therefore, the conversion factor is as follows:

155 km =155km×(0.6214 mi1km)           = 96

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