PSLEGrace, Risa and Elizabeth shared $800. Risa received 50% more than Grace while Elizabeth received 30% less than Grace. How much more than Elizabeth did Risa receive?
Grace |
Risa |
Elizabeth |
Total |
100% |
150% |
|
|
100% |
|
70% |
|
10 u |
15 u |
7 u |
32 u |
Grace : Risa : Elizabeth
100 : 150 : 70
(÷10)10 : 15 : 7
Grace is the repeated identity.
Total amount that they shared
= 10 u + 15 u + 7 u
= 32 u
32 u = 800
1 u = 800 ÷ 32 = 25
Amount that Risa received more than Elizabeth
= 15 u - 7 u
= 8 u
= 8 x 25
= $200
Answer(s): $200