PSLECharlotte, Robert and Avery shared $310. Robert received 30% more than Charlotte while Avery received 20% less than Charlotte. How much more than Avery did Robert receive?
Charlotte |
Robert |
Avery |
Total |
100% |
130% |
|
|
100% |
|
80% |
|
10 u |
13 u |
8 u |
31 u |
Charlotte : Robert : Avery
100 : 130 : 80
(÷10)10 : 13 : 8
Charlotte is the repeated identity.
Total amount that they shared
= 10 u + 13 u + 8 u
= 31 u
31 u = 310
1 u = 310 ÷ 31 = 10
Amount that Robert received more than Avery
= 13 u - 8 u
= 5 u
= 5 x 10
= $50
Answer(s): $50