a. Find 25% of 36
b. Find 16% of 22
c. Find 75% of 84
d. Find 66% of 53
Question 2 - Write down method used
To answer this type of question it is helpful to know what the different numbers mean. In part b, we have
Find 16 as a percentage of 64.
In this case 64 is the quantity that is equal to 100%, we need to work out, if 64
is equal to 100%, was is 16 equal to.
To do this
STEP 1
We divide 16 by 64, which will give us the decimal 0.25 or a fraction of 16 over 64 which can be cancelled to a quarter.
STEP 2
We then times it by 100 to turn the decimal or fraction in to a percentage. 0.25 or a quarter times 100 gives 25%
a. Find 40 as a percentage of 100
b. Find 16 as a percentage of 64
c. Find 12 as a percentage of 20
d. Find 33 as a percentage of 44
Question 3
- Write down method used
Out of 52 people who take a driving test, 34 people pass.
What percentage of people:
a. pass?
b. fail?
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