Time and Work with Leaving Early

Total work = LCM(16, 8, 32) = 32 units. Efficiencies: Raman = 2, Satish = 4, Ashok = 1. Let total time taken be $X$ days. Satish worked for 2 days, Raman worked for $X-3$ days, Ashok worked for $X$ days. Work done: $4 \times 2 + 2(X - 3) + 1(X) = 32 \implies 8 + 2X - 6 + X = 32 \implies 3X + 2 = 32 \implies X = 10$ days.