Question

3 Marcus has 500 g of flour. He uses 200g to bake

bread and 120g to make biscuits.
Work out the percentage of the flour:
A he uses for bread
B he uses for biscuits
C he does not use

Answer 1

40% , 24% , 36%

Explanation:

first express each as a fraction then multiply the fraction by 100%

A

`(200)/(500)` × 100% = 0.4 × 100% = 40% used for bread

B

`(120)/(500)` × 100% = 0.24 × 100% = 24% used for biscuits

C

percentage not used = 100% - (40 + 24)% = 100% - 64% = 36%