Roshel is 40% heavier than Daniel. Sabrina is 30% lighter than Daniel. Roshel is 56 kg heavier than Sabrina. What is Daniel's mass?
| Roshel |
Daniel |
Sabrina |
| 140% |
100% |
|
| |
100% |
70% |
| 14 u |
10 u |
7 u |
Roshel's mass compared to Daniel's mass in percent
= 100% + 40%
= 140%
Sabrina's mass compared to Daniel's mass in percent
= 100% - 30%
= 70%
140% =
140100 =
141070% =
70100 =
710Daniel's mass is the repeated identity. Make Daniel's mass the same.
Daniel's mass = 10 u
Mass that Roshel has more than Sabrina
= 14 u - 7 u
= 7 u
7 u = 56
1 u = 56 ÷ 7 = 8
Daniel's mass
= 10 u
= 10 x 8
= 80 kg
Answer(s): 80 kg
