Question

Tim's pay increased by 5% to £880

a fortnight.
What was his pay before the
increase?

Answer 1

£838.10

Explanation:

let x be past pay

according to the question

`x * (105)/(100) = 880`

`x = 880 * (100)/(105)`

`x = 838.10`

Answer 2

• £838.10

Explanation:

Let the previous salary be x

Increase = 5%

New salary = £880

• x + 5% = 880
• x*1.05 = 880
• x = 880/1.05
• x = £838.10 (rounded)