Hilda is 50% heavier than Harry. Xuan is 20% lighter than Harry. Hilda is 49 kg heavier than Xuan. What is Harry's mass?
| Hilda |
Harry |
Xuan |
| 150% |
100% |
|
| |
100% |
80% |
| 15 u |
10 u |
8 u |
Hilda's mass compared to Harry's mass in percent
= 100% + 50%
= 150%
Xuan's mass compared to Harry's mass in percent
= 100% - 20%
= 80%
150% =
150100 =
151080% =
80100 =
810Harry's mass is the repeated identity. Make Harry's mass the same.
Harry's mass = 10 u
Mass that Hilda has more than Xuan
= 15 u - 8 u
= 7 u
7 u = 49
1 u = 49 ÷ 7 = 7
Harry's mass
= 10 u
= 10 x 7
= 70 kg
Answer(s): 70 kg
