Question

Rosie, Matilda and Ibrahim collect stickers.
4:7:15
number of stickers
Rosie has
:
: number of stickers
Matilda has
:
number of stickers
Ibrahim has
Ibrahim has 24 more stickers than Matilda.
Ibrahim has more stickers than Rosie.
How many more?

Answer 1

Ibraheem has 33 more stickers than Rosie

Ratio and Proportion

Given the ratio of number of stickers Rosie to Maltida to Ibrahim collect given as 4:7:15

Let the common ratio be "y" so that the ratio is expressed as:

Rosie:Matilda:Ibrahim=4y:7y:15y

Determine the value of y using the expression

15y-7y=24

8y=24

y=3

In order to calculate the number of sticker Ibrahim has more than Rosie;

number of stickers Ibrahim has - number of stickers Rosie has = 15(3)-12(3)  =  33  

Hence Ibraheem has 33 more stickers than Rosie

Learn more on ratio here: https://brainly.com/question/2914376