FM -- Problem from Credit Policy

there is nothing much difficult in this problem...

prepare income statement for all the three policies(proposal1&2, present)

find out the profit in each policy, find out the accounts receivable in each policy.

then find out the incremental profit and accounts receivables for proposal 1 and 2 from the present policy.

now apply the rate of return the company expects on the incremental accounts receivable. 

the difference between the resultant figure and the incremental profit for each proposal to be considered to opt the appropriate one.