Question: Mrs Fisher is given a 10% pay rise. Her new wage is £22 per hour.
100%
10%
£22
a) Complete the sentence.
% is equivalent to £22
b) Work out Mrs Fisher's hourly wage before the pay rise.
£
7
A large box of cereal contains 25% more cereal than a standard box.
The large box contains 500 g of cereal.
Calculate how many grams of cereal there are in the standard box.
g
4
Work out the numbers.
a) 20% of a number is 10
The number is
b) 20% of a number is 15
The number is
c) 20% of a number is
d) 20
5
Filip has some red and yellow counters.
25% of Filip's counters are red.
There are 5 red counters.
a) How many counters does Filip have in total?
b) How many yellow counters does Filip have?
6
I know that 5% of my number is 30
How can you work out 10% of Eva’s number?
What other percentages of Eva’s number
1. **Problem statement:** Mrs Fisher has a 10% pay rise and her new wage is £22 per hour. We need to find her original wage before the rise.
2. **Understanding the problem:** A 10% pay rise means her new wage is 110% of her original wage.
3. **Formula:** New wage = Original wage \times (1 + Percentage increase) = Original wage \times 1.10
4. **Set up the equation:**
$$22 = Original\ wage \times 1.10$$
5. **Solve for original wage:**
$$Original\ wage = \frac{22}{1.10}$$
6. **Simplify:**
$$Original\ wage = \frac{22}{\cancel{1.10}} = 20$$
7. **Answer:** Mrs Fisher's hourly wage before the pay rise was £20.
**Final answers:**
a) 10% is equivalent to £2 (since 10% of original wage £20 is £2, and the increase is £2 to reach £22)
b) £20