Marion is 30% heavier than Andy. Jaslyn is 20% lighter than Andy. Marion is 35 kg heavier than Jaslyn. What is Andy's mass?
| Marion |
Andy |
Jaslyn |
| 130% |
100% |
|
| |
100% |
80% |
| 13 u |
10 u |
8 u |
Marion's mass compared to Andy's mass in percent
= 100% + 30%
= 130%
Jaslyn's mass compared to Andy's mass in percent
= 100% - 20%
= 80%
130% =
130100 =
131080% =
80100 =
810Andy's mass is the repeated identity. Make Andy's mass the same.
Andy's mass = 10 u
Mass that Marion has more than Jaslyn
= 13 u - 8 u
= 5 u
5 u = 35
1 u = 35 ÷ 5 = 7
Andy's mass
= 10 u
= 10 x 7
= 70 kg
Answer(s): 70 kg
