One whole of percentage

 In this lesson we're going to look at some particular questions that is about percentages.
Keep in mind when you're doing a question about percentage, it must be add up to 100%.

Previously I told you in percentage, percentage means hundredth or out of 100. Unfortunately I have to say the best solution to understand is working through these examples below.

 1. First example is "I scored 88% in maths test. What percentage have I got wrong?"
 We know that 88% is correct, we subtract 88% from 100%.
Therefore the answer is 12%.

 2. Second example is "A company consist 60% of females. What percentages are male?"
We know that 60% is female, so we subtract 60% from 100%.
Therefore the answer is 40%.

3. Third example is A class has 3 choice of sport in this term: tennis, swimming or shooting.
32% of the student choose to play swimming and 47% to do shooting. What percentage of the student will be playing tennis?

 Swimming + shooting = 32% + 47% = 79%
Total percentages must add up to 100%.
So, we subtract 79% from 100%.
Therefore the answer is 21%.

4. Forth and last example is "Jon got 56%, 23% and 98% in 3 separate history exams. What was his average marks?"

 When you're finding average you have to add all the scores and divide by the number of the scores.

Average = 56% + 23%+ 98% / 3.
Therefore the answer is 177/3 = 59
  i.e 59%.

* Another way to say the average is mean.