How to find an original price from a reduced percentage.
Take the example: 'The price of a TV is reduced to 69% and is now £379.50. Find the original price. (This means find the price when it was at 100%.) Let's start by calling each percentage a 'part'. The new price is 69 out of 100 parts, but we want to find the value of the full 100. You could find the value of one part, by dividing 69% by 69, hence diving £379.50 by 69. This gives £5.50. Now find the value of 100 parts by multiplying the value by 100. This gives £550. Putting this into a formula, you could say: Original price= 100/New percentage
PE
Related Maths GCSE answers
All answers ▸Simplify the following: 5(x+2) - 3(6-x)
Solve the two simulatneous equations x^2+y^2=18 and x-y=3
In triangle ABC, right angled at B, AB = 3 cm and AC = 6 cm. Determine angle BAC and angle ACB.
In a group of 120 people, 85 have black hair, 78 have brown eyes and 20 have neither black hair nor brown eyes. Find the probability of a random person being picked having black hair, given they have brown eyes