Solving Percents
What percent of 50 is 20?
40%
What is the GST that would be added to an original price of $70?
(A) $77
(B) $63.64
(C) $7
(D) $63
(C) $7
Which is the best buy?
a. $19.25 for 11 candy bars
b. $15.39 for 9 candy bars
b. $15.39 for 9 candy bars
This is the definition of a discount.
What is a percentage of the total amount that is subtracted from the total amount.
How do we work out percentage loss?
Find the amount of change by subtracting the new amount FROM the original amount. Next, set up a proportion by putting the loss amount over the original amount and times by 100.
If 20 gallons represents 100% this is the number of gallons at 75%.
15 gallons.
What is 45% of $62?
$27.90
What is the retail price after the GST has been added to $8.60?
(A) $0.86
(B) $7.82
(C) $8.70
(D) $9.46
(D) $9.46
Which is the best buy?
a. 400g of shampoo A at $3.20
b. 320g of shampoo B at $2.85
Shampoo A
This is a 40% discount amount for a book that costs $86.
$51.60
What is an increase in money called?
Profit
150 is 20% of this number.
750.
What is 290% of 69m?
200.1m
Jasmine went shopping and spent $126.40 before tax. At 6%, the amount she will pay in tax for $126.40 is this.
$7.58.
Which size Dairy Queen Blizzard gives you the best price per gram?
-Small 6 gram cup for $2.49
-Medium 10 gram cup for $3.49
-Large 16 gram cup for $4.99
The large 16 gram cup because it costs 0.31 cents per gram.
This is the total amount to be paid if a 30% coupon was used on an item costing $98.
$68.60.
A pair of shoes originally cost $60, but are on sale for $45. This is the percent of change.
25% decrease.
The Kyle family spent $89.60 at Chilies. They gave their server a 15% tip. This is the total amount they paid.
What is $103.04.
74.55 is what percent of 135?
55.22%
What was the original price before the GST was added to a retail price of $1238.38?
(A) $123.84
(B) $112.58
(C) $1125.80
(D) $1115
(C) $1125.80
A store sells packages of pencils. Which package offers the best unit price?
a. 12 pencils for $3.00
b. 14 pencils for $3.78
c. 11 pencils for $3.08
d. 15 pencils for $3.90
a. 12 pencils for $3.00
Elvis bought a guitar that was on sale for $24,867. The original price was $32,912. What was his discount?
Approximately 25%
Disney calculated that in 2015, 18,000 people used the "Fast Pass". This year, 25,000 used the "Fast Pass". What was the percentage change (increase/decrease) rounded to the hundredth place?
38.89% increase.
In 2006, 13,896 people entered the Harvard Yard Arena. In 2018, 14,201 entered. This is the percent of change.
2.19% increase.
80% of what is 128.4?
160.5
John is buying a new baseball bat which costs $315. The tax is 6%. This is the total John will pay for the bat.
$333.90.
One can of Mountain Dew costs $1.25 in a vending machine. A 12-pack of Mountain Dew costs $3.49 at the grocery store. How much money would you save by purchasing a dozen can of Mountain Dew at the grocery store instead of a dozen at the vending machine?
You would save $11.51 by buying Mountain Dew at the grocery store rather than at the vending machine.
Jason had $67 saved to buy a game for his Nintendo Switch. The game costs $78, but he has a coupon for a 15% discount. Showing your work, Jason will or will not have enough money for the new game.
Jason will have enough money, as the game with discount costs $66.30.
98 books were donated to the Library in 2018. A 200% increase is expected next year. This is the total number of books expected to be collected in 2019.
294 books.
The bill for your meal, without tax is $23.89. This is the total amount you will need to pay when leaving a 18% tip and paying the 6% tax.
$29.88.