Lee has 40% more stickers than Michael. Ryan has 80% the number of stickers Lee has.
- What is the ratio of the number of Michael's stickers to the number of Ryan's stickers?
- If the total number of stickers of Lee's and Ryan's is 304 more than Michael's, how many stickers does Lee have?
Lee |
Michael |
Ryan |
7x5 |
5x5 |
|
5x7 |
|
4x7 |
35 u |
25 u |
28 u |
100% + 40% = 140%
140% =
140100 =
75 Lee's stickers : Michael's stickers = 35 : 25
80% =
80100 =
45 Ryan's stickers : Lee's stickers = 28 : 35
Michael's stickers: Ryan's stickers = 25 : 28 (a)
Lee's stickers + Ryan's stickers = 35 u + 28 u = 63 u
Michael's stickers = 25 u
63 u - 25 u = 304
38 u = 304
1 u = 304 ÷ 38 = 8
Number of Lee's stickers
= 35 u
= 35 x 8
= 280 (b)
Answers: (a) 25 : 28; (b) 280