Hazel is 25% heavier than Ahmad. Xandra is 30% lighter than Ahmad. Hazel is 33 kg heavier than Xandra. What is Ahmad's mass?
| Hazel |
Ahmad |
Xandra |
| 125% |
100% |
|
| |
100% |
70% |
| 25 u |
20 u |
14 u |
Hazel's mass compared to Ahmad's mass in percent
= 100% + 25%
= 125%
Xandra's mass compared to Ahmad's mass in percent
= 100% - 30%
= 70%
125% =
125100 =
252070% =
70100 =
1420Ahmad's mass is the repeated identity. Make Ahmad's mass the same.
Ahmad's mass = 20 u
Mass that Hazel has more than Xandra
= 25 u - 14 u
= 11 u
11 u = 33
1 u = 33 ÷ 11 = 3
Ahmad's mass
= 20 u
= 20 x 3
= 60 kg
Answer(s): 60 kg
