Answer:
Individual                   Cost                                Shares to be enjoyed 
Mabel                      $10,000                            10000 / 150000 =  6.67%
Gertrude                 $20000                            20000 / 150000 = 13.3%
Myron                      $30000                            30000 / 150000 = 20%
Wilber                      $40000                            40000 / 150000 = 26.6%
You                          $50000                            50000 / 150000 = 33.3%
Explanation:
peaked preferences 
Most preferred value to spend :
Mabel = $10,000
Gertrude = $20,000
Myron = $30,000
Wilber = $40,000
you = $50,000
cost of Condo = $150,000
<u>Implementing a Uniform rule mechanism to allocate costs and shares </u>
The uniform rule ; ∑ j∈I Uj (p) = Ω.
where Ω = fixed amount of resource 
hence the summation of all allotment should = Ω ( $150,000 )
Number of friends = 5 
cost of condo  = $150,000 
If divide equally each person will have to pay ; $150,000 / 5 = $30,000
Total money to be spent by friends = 10,000 + 20,000 + 30,000 + 40,000 + 50,000  = $150,000
Individual                   Cost                                shares to be enjoyed 
Mabel                      $10,000                            10000 / 150000 =  6.67∑%
Gertrude                 $20000                            20000 / 150000 = 13.3%
Myron                      $30000                            30000 / 150000 = 20%
Wilber                      $40000                            40000 / 150000 = 26.6%
You                          $50000                            50000 / 150000 = 33.3%
∑shares ≈ 100% ( 150,000 )