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Degree: Chemical Engineering (Masters) - Edinburgh University
|Maths||A Level||£22 /hr|
|Applied Mathematics||Advanced Higher||A|
Sheila (Parent) June 4 2016
If we first calculate 30% of £4 to work out how much the price of the book has been reduced by.
10% of £4 is £0.40. We know 30% will be this value multiplied by 3. Therefore 30% of £4 is £1.20.
Now that we know how much the book has been reduced by we can simply do:
Original cost of book minus the reduction in price to find the new price of the book.
£4.00 - £1.20 = £2.80see more