questionFromString.label: SBI PO Mains 2017

If A worked on job X for 5 days each and C worked for 3 days. the remaining job was done by E and D. If the ratio of thenumber of days for which D and E worked is in ratio 1:1, then find the number of days for which C,D and E worked ?

A and B working on job Y alternatively for 10 days. C and D worked alternatively for n days. If 1/15 of the job is remained then how many days c alone can finish the job?

If the ratio of the number of days for which Dand C worked on job Y is 12:5 and completed the work then find the difference between number of days for which C and D worked.