Tip
A type of ratio, called a rate, compares quantities with different units of measure (for example, miles per hour).
Sample Problem
A length of 100 meters is closest to which of the following lengths, in inches? (1 inch is approximately equal to 2.5 centimeters.)
Answer Options
(A) 40
(B) 250
(C) 400
(D) 2,500
(E) 4,000
View Correct Answer
(E) 4,000
1 meter = 100 centimeters
100 m = 10,000 cm
10,000cm/xin = 2.5cm/1in
x = 10,000/2.5 = 4,000
