PSLERisa, Claire and Ryan shared $870. Claire received 20% more than Risa while Ryan received 30% less than Risa. How much more than Ryan did Claire receive?
Risa |
Claire |
Ryan |
Total |
100% |
120% |
|
|
100% |
|
70% |
|
10 u |
12 u |
7 u |
29 u |
Risa : Claire : Ryan
100 : 120 : 70
(÷10)10 : 12 : 7
Risa is the repeated identity.
Total amount that they shared
= 10 u + 12 u + 7 u
= 29 u
29 u = 870
1 u = 870 ÷ 29 = 30
Amount that Claire received more than Ryan
= 12 u - 7 u
= 5 u
= 5 x 30
= $150
Answer(s): $150