Need help with part c

Ten cavemen with a remaining average life expectancy of 10 years use a path from their cave to a spring some distance away. The path is not easily traveled due to 100 largestones that could be removed. The annual benefit to each individual if the stones were removed is $9.00. Each stone can be removed at a cost of $250. The interest rate is 2% Click here to access the TVM Factor Table Calculator Parta Your answer is correct. Computs the bansfit cost ratio for the individual if healans removed the 100 stones. 29 Carry all interim calculations to 5 decimal places and then round your final answer to 2 decimal places. The tolerance is 10.02. eTextbook and Media Attempts: 1 of 3 used Part b Your answer is correct. Compute the benefit/cost ratio for the individual if the task was undertaken collectively, with each individual removing 10 stones. 2.87 Carry all interim calculations to 5 decimal places and then round your final answer to 2 decimal places. The tolerance is 10.02. eTextbook and Media Attempts: 1 of 3 used Part X Your answer is incorrect. What maximum amount may be charged by a manager who organizes the group affort if the minimum acceptable benefittest 25.93 ratio is 2?$ Carry all interim calculations to 5 decimal places and then round your final answer to the nearest dollar. The tolerance is +5