Fractions, Decimals and Percentages
What is 1/2 as a percentage?
50%
What is 10% of $200?
$20
Increase $50 by 10%.
$55
Sam scored 8 out of 20 in a test. What is this as a percentage?
40%
Jack buys a camera for $100 and sells it for $70. How much did he lose?
$30
Convert 0.8 to a percentage.
80%
There were adults and children at a concert. If 35% of the crowd were adults, what percentage of the crowd were children?
65% of the crowd were children.
Decrease $20 by 10%.
$18
A hockey team scored 8 goals. If one player scored 5 of them, what is this as a percentage of the team score?
62.5%
A surfboard cost $900 without GST. Calculate the amount of GST that needs to be paid.
Hint: GST is 10% of the price.
$90
Express 78% as a simplified fraction.
39/50
Find 16% of $350.
$56
Increase 45 grams by 3%.
46.35 grams
What is 40 minutes as a percentage of 2 hours?
33 1/3 %
Jess buys Pokemon cards for $20 and sells them for $25. Find the profit as a percentage of the cost price?
25%
Write 12.5% as a decimal.
0.0125
What is 20% of 1 hour (in minutes)?
12 minutes
The price of a watch increases by 15%. If its original price was $35, find its new price.
$40.25
In a class of 25 students, 6 ride bikes, 10 walk to school and the rest catch the bus.
What percentage of students catch the bus?
36%
A necklace cost $230 plus 10% GST. Find the total price of the necklace after GST is added.
$253
Which is larger, 18% or 1/7 ?
18%
12% of the 525 swimmers at the swimming carnival wore black caps. How many swimmers wore black caps?
63 swimmers wore black caps.
Calculate the sale price of a pair of sports shoes that cost $165 after a discount of 12%.
$145.20
Jacob bought a fishing rod on sale for $300, saving $60. What percentage discount did he recieve?
20%
A new laptop cost $1500 including GST. What was the amount of GST paid?
$136.36