Percentage
What is the formula to calculate the percentage of a number?
p=b x r
What do we call the original amount before any percentages are taken?
Base
What is the rate in a percentage problem?
The percentage is expressed as a decimal.
If 60 pupils in a class and 24 items on a test are about Science, what percentage of the test items are about Science?
40%
If 20% of a class has received an A, and there are 30 pupils in total, how many received an A?
6 pupils
If you save 25% of your allowance each week, what is your rate of saving?
0.25 or 25%
A school has 420 pupils, and 108 are boys. What percentage of the pupils are boys?
26%
If Andrea has ₱20, which is 5% of her sister's money, how much money does her sister have?
400 pesos
In a sale, a store offers a 15% discount. If an item costs ₱200, how much do you save?
30 pesos
If Cesar has 72 foreign stamps representing 16% of his total collection, how many stamps does he have in total?
450 stamps
How can you find the base when given the percentage and rate?
b= p/r
If a recipe calls for 2 cups of sugar and you want to make a dish that is 150% of the original recipe, how much sugar do you need?
3 cups
Malou buys a notebook for ₱6.00, which is 10% of the cost of a notebook in store B. How much does the notebook cost in store B?
60 pesos
A student scored 80% on a test with 50 items. How many items did the student answer correctly?
40 items
If 40% of the attendees at a conference are professionals, how would you express the rate of professionals as a fraction?
40/100 or 2/5