a contractor engaged by ministry of works on a project maintenance project presented the following stratified requests of payments over a period of 5 months.
months cost
1 20 millions
2 30 millions
3 42 millions
4 38 millions
5 35 millions
6 40 millions
if the cost of workdone of each month is 60%,the stratified value and the preseented requests excluded 10% of the money retained of defects liability to be paid 3 months.How much money does the contractor need to mobilize to do the project assuming the stratified requests are paid within one month of presentation and 20% of the incuured costs are due a month later.