SAT Mathematics Practice Test 5

Question : 29 of 58

Marks: +1, -0

In the 1908 Olympic Games, the Olympic marathon was lengthened from 40 kilometers to approximately 42 kilometers. Of the following, which is closest to the increase in the distance of the Olympic marathon, in miles? (1 mile is approximately 1.6 kilometers.)

1.00
1.25
1.50
1.75

Validate

Solution:

In 1908, the marathon was lengthened by 42 − 40 = 2 kilometers. Since 1 mile is approximately 1.6 kilometers, the increase of 2 kilometers can be converted to miles by multiplying as shown:

2\text "kilometers"×\text "1 mile"/\text "1.6 kilometers"=1.25

miles
Choices A, C, and D are incorrect and may result from errors made when applying the conversion rate or other computational errors.

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