Find 30\% of 1500 and add your answer to the original amount of 1500.
Calculate 130\% of 1500.
Are your answers to (a) and (b) the same? Explain why this is.
What percentage should a quantity be multiplied by in order to increase the quantity by:
Increase:
700 by 10\%.
45\text{ cm} by 71\%.
\$7 by 106\%.
22.6\text{ kg} by 18\dfrac{3}{4}\%.
260\text{ L} by 0.8\%.
A bag of potatoes weighs 50\text{ kg}. When more potatoes are added, the weight of the bag increases by 35\%. Find the new weight of the bag of potatoes.
A basket of goods was valued at \$43.70 in January 2011. The inflation rate for the year was 8\%. What is the expected cost of the basket of goods in January 2012?
Find 12\% of 1800 and subtract your answer from the original amount of 1800.
Calculate 88\% of 1800.
Are your answers to (a) and (b) the same? Explain why this is.
What percentage should a quantity be multiplied by in order to decrease the quantity by:
A bag of rice weighs 100\text{ kg}. When some rice is poured out, the weight of the bag decreases by 30\%. Find the new weight of the bag of rice.
A tennis racket marked at a price of \$90 is advertised to be selling at 45\% off the marked price. Find the discounted price.
What does 10\% off the price of a car mean?
Steph is going to buy a dress that is marked as 75\% off. The original price was \$36.
What is the value of the discount?
What is the price that Steph will pay for the dress?
Duncan is going to buy a hat that is marked as 25\% off. The original price was \$30.
Find the discount amount.
Find the discounted price that Duncan will pay for the hat.
A dining table selling for \$1000 is discounted at 5\% and then again at 6\%.
What is the price of the dining table after the first discount is applied?
What is the price of the dining table after the second discount is applied?
The percentage discount is changed by adding the previous percentages (5\%+6\%) to get 11\%. Find the new discounted price.
Is a single discount of 11\% equal to successive discounts of 5\% and 6\%?
What is the single discount rate that is equivalent to successive discounts of 5\% and 6\%? Give your answer as a percentage to one decimal place.
The price of a heater selling for \$234 is initially discounted by 14\% and later marked up by 14\%. What is the final sales price?
The price of a phone was increased by 40\% and then again by 40\%.
What was the overall percentage increase?
Is the overall percentage increase when the price is increased by 40\% twice equal to 2 \times 40\%?
The price of a dress was reduced by 30\% and then again by 30\%.
What was the overall percentage decrease?
Is the overall percentage decrease when the price is reduced by 30\% twice equal to \\ 2 \times 30\%?
Find the overall percentage increase of the following:
The price of a shirt was increased by 97\% and then again by 97\%.
The price of a dress was reduced by 20\% and then increased by 44\%.
The price of a dress was increased by 19\% and then reduced by 14\%.
The price of a phone was reduced by 25\% and then again by 25\%. Find the overall percentage decrease.
After discounting, a clothes dryer sold for \$855. Calculate the original price if the discount was:
20\%
20\% and 16\% successively
Which offer gives the greater discount?
Offer 1: A single discount of 13\%
Offer 2: Successive discounts of 6\% and 11\%
Offer 1: A single discount of 16\%
Offer 2: Successive discounts of 5\% and 11\%
A PC originally sells at \$4700.
Calculate its sale price after successive discounts of 6\% and 9\%.
Calculate its sale price after successive discounts of 9\% and 6\%.
Does the order of discounting affect the sale price?
Calculate its sale price after successive discounts of 8\%, 7\% and 5\%.
The Run4Fun charity race is increasing in popularity. A year ago, 60\,000 people registered to run and this number is expected to increase by 6\% this year and then by another 8\% next year. How many people are expected to run next year?
Bob has invested heavily in a certain company. One day, it was announced that their factory was damaged by a fire and its share price fell by 40\%. However, when it was announced the next day that the company had insurance and wouldn't be too badly affected, the shares recovered by 40\%.
Express the share price after the original announcement as a percentage of the previous day's price.
Express the share price after the insurance announcement as a percentage of the price after the original fire announcement.
Calculate the final share price as a percentage of the price before either announcement.
Hence, evaluate the percentage change over the two years.
Is this change an overall increase or decrease?
Calculate the 10\% GST applicable on the following original prices:
\$80
\$37
\$95
\$59
Calculate the sales price, including GST, for an item with an original price of \$20.
John received a bill of \$68 for consultation and \$10 for herbal supplements from a medical professional. If GST is only applied to the consultation fee, what is the total bill that John must pay?
Calculate the GST on an item with a sales price (including GST) of:
\$40
\$83.90
Calculate the original price of the item, before the application of GST for each of the following sales price:
\$99
\$56.45
\$937.70
Fruits and vegetables do not incur GST of 10\%. If the total shopping bill is \$109, and fruits and vegetables amount to \$62, what is the cost of the other items prior to adding GST?