Name: 
 

NS 1.6


Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1 
Find the percent increase or decrease from 280 to 84.
A
70% increase
C
233% increase
B
70% decrease
D
233% decrease
 

 2 
Find the percent increase or decrease from 200 to 196.
A
2% decrease
C
2% increase
B
2% increase
D
2% decrease
 

 3 
Find the percent increase or decrease from 200 to 96.
A
52% decrease
C
108% decrease
B
108% increase
D
52% increase
 

 4 
Find the percent increase or decrease from 60 to 33.
A
45% decrease
C
45% increase
B
82% decrease
D
82% increase
 

 5 
Li-ming owns an ice cream shop. On Saturday evening from 6:00 P.M. to 7:00 P.M., 80 people entered her shop. On Tuesday from 3:00 P.M. to 4:00 P.M., 17 people entered her shop. What was the percent decrease in customers from the given hour on Saturday to the given hour on Tuesday? If necessary, round your answer to the nearest hundredth of a percent.
A
64.75%
C
370.59%
B
78.75%
D
0.79%
 

 6 
A red shift is a change in the wavelength of light caused by a light source, such as a galaxy, moving away from an observer. A red shift is expressed as a percent increase. If the normal wavelength of a light source is 160 nanometers and the wavelength of the source as observed from Earth is 1100 nanometers, what is the red shift? If necessary, round your answer to the nearest hundredth of a percent.
A
85.45%
C
587.5%
B
5.88%
D
17.02%
 

 7 
Find the percent change from 60 to 30. Tell whether it is a percent increase or decrease. If necessary, round your answer to the nearest percent.
A
50% decrease
C
100% increase
B
100% decrease
D
50% increase
 

 8 
Find the percent change from 40 to 78. Tell whether it is a percent increase or decrease. If necessary, round your answer to the nearest percent.
A
95% increase
C
49% decrease
B
95% decrease
D
49% increase
 

 9 
Find the percent change from 125 to 165. Tell whether it is a percent increase or decrease. If necessary, round your answer to the nearest percent.
A
32% decrease
C
24% decrease
B
24% increase
D
32% increase
 

 10 
Roberto farms a tract of land that typically yields 69.6 kilograms of peas. A fertilizer manufacturer claims that its fertilizer will produce a 60% increase in the yield. What total amount of peas should Roberto expect from this tract of land if he applies the fertilizer? If necessary, round your answer to the nearest hundredth.
A
27.84 kilograms
C
111.36 kilograms
B
41.76 kilograms
D
4,245.6 kilograms
 



 
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