Question 1
Complete this table by expressing each number as a fraction (in simplest form), a decimal and a
percentage.
FRACTION FORM
3
4
DECIMAL FORM
PERCENTAGE
1
3
0.6
2
1
5
5
8
36%
0.85
15%
330%
0.024
61%
1.05
3
5 10
13%
24%
1.5%
13
20
19
25
Question 2
Write the following numbers in ascending order:
7
1
8
2
a. 1.6, 25%, , 75%, 10%, 3 , 2.4
b.
4
1
5
3
3 , 330%, 4.5, 150%, 3, 2 , 2.8
Question 3
The population of lions in a national park decreased from 1500 to 1200. Calculate the
percentage decrease in the population.
Question 4
The price of a smart phone was originally $800 but has now been reduced to $640. Calculate
the percentage decrease in the price of the phone.
Question 5
In one year, the weight of a puppy increases from 25 kg to 32.5 kg. Calculate the
percentage increase in the puppy’s weight.
Question 6
An athlete has a personal best of 12.2 seconds for the 100m sprint. In his next race, he runs
the 100 m in 11.4 seconds. What is the percentage reduction in his best time? Give your
answer correct to two decimal places. (Show how you get your answer)
Question 7
A full forward kicked 55 goals over the 2013 season, and in the 2014 season he kicked 72
goals. What is the percentage increase in his goal tally from 2013 to 2014? Give your
answer correct to two decimal places.
Question 8
Express $120 as a percentage of $400.
Question 9
An energy bar weighs 50 grams and contains 22.6 grams of carbohydrate. What percentage
of the bar is carbohydrate?
Question 10
In a survey, it is found that 322 people will vote for the Liblab party, 366 will vote for the
Groan Party, and 127 will not vote for any party. What percentage of those who went in
this survey will not vote for any party? Give your answer correct to two decimal places