percentage of an amount
Find 10% of £80.
£8
Share £40 in the ratio 3:5
£15 and £25
Find 15% of 200 grams.
30g
A bag contains red and blue marbles in the ratio 4:74:7.
If there are 28 red marbles, how many blue marbles are there?
49
A shirt was £40. During a sale, the price is reduced by 30%.
What is the sale price?
£28
The ratio of boys to girls in a Year 9 class is 5:3.
There are 32 students in total.
How many are boys?
20
Find 11% of 240.
26.4
x:y=2:3 and y:z=6:5.
Find x:z in its simplest form.
x:z=4:5
In a school, 35% of the students are in Year 9. There are 320 students in total.
How many students are in Year 9?
112
In a school, the ratio of students in Year 7 : Year 8 : Year 9 is 4:3:2.
There are 96 more students in Year 7 than in Year 9.
Find the total number of students in Year 8.
144