Eva is 10% heavier than Neave. Pamela is 40% lighter than Neave. Eva is 30 kg heavier than Pamela. What is Neave's mass?
| Eva |
Neave |
Pamela |
| 110% |
100% |
|
| |
100% |
60% |
| 11 u |
10 u |
6 u |
Eva's mass compared to Neave's mass in percent
= 100% + 10%
= 110%
Pamela's mass compared to Neave's mass in percent
= 100% - 40%
= 60%
110% =
110100 =
111060% =
60100 =
610Neave's mass is the repeated identity. Make Neave's mass the same.
Neave's mass = 10 u
Mass that Eva has more than Pamela
= 11 u - 6 u
= 5 u
5 u = 30
1 u = 30 ÷ 5 = 6
Neave's mass
= 10 u
= 10 x 6
= 60 kg
Answer(s): 60 kg
