Kylie is 40% heavier than Brandon. Elyse is 25% lighter than Brandon. Kylie is 39 kg heavier than Elyse. What is Brandon's mass?
| Kylie |
Brandon |
Elyse |
| 140% |
100% |
|
| |
100% |
75% |
| 28 u |
20 u |
15 u |
Kylie's mass compared to Brandon's mass in percent
= 100% + 40%
= 140%
Elyse's mass compared to Brandon's mass in percent
= 100% - 25%
= 75%
140% =
140100 =
282075% =
75100 =
1520Brandon's mass is the repeated identity. Make Brandon's mass the same.
Brandon's mass = 20 u
Mass that Kylie has more than Elyse
= 28 u - 15 u
= 13 u
13 u = 39
1 u = 39 ÷ 13 = 3
Brandon's mass
= 20 u
= 20 x 3
= 60 kg
Answer(s): 60 kg
