Victoria is 40% heavier than Ryan. Shiyun is 10% lighter than Ryan. Victoria is 25 kg heavier than Shiyun. What is Ryan's mass?
| Victoria |
Ryan |
Shiyun |
| 140% |
100% |
|
| |
100% |
90% |
| 14 u |
10 u |
9 u |
Victoria's mass compared to Ryan's mass in percent
= 100% + 40%
= 140%
Shiyun's mass compared to Ryan's mass in percent
= 100% - 10%
= 90%
140% =
140100 =
141090% =
90100 =
910Ryan's mass is the repeated identity. Make Ryan's mass the same.
Ryan's mass = 10 u
Mass that Victoria has more than Shiyun
= 14 u - 9 u
= 5 u
5 u = 25
1 u = 25 ÷ 5 = 5
Ryan's mass
= 10 u
= 10 x 5
= 50 kg
Answer(s): 50 kg
