# Numbers -> Percentages Quiz

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Note that we use the form 10(X) to refer to 10 raised to the power of X.

### Question 1

Calculate the following:

a. What is 10% of £100?

b. What is 23% of £10?

c. What is 5% of £5?

d. What is 150% of £30?

e. 20% taken off £80

**Self Assessment:**

### Question 2

An item is increased by 50%, and then reduced by 50% (with respect to the increased value). What is the net % change.

**Self Assessment:**

### Question 3

What is the net reduction of an item that is reduced by 30% and then by another 30% (with regards the reduced value).

**Self Assessment:**

### Question 4

Which offers the better deal per unit item: Buy 1 get 1 half price, or 30% off.

**Self Assessment:**

### Question 5

Assuming an inflation rate of 10%. What would be the Net Present Value of having £121 in two years time.

**Self Assessment:**

## Numbers -> Percentages Quiz: Scoring

Number of Questions
Questions Completed
Total Score

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