A product moves through five successive supply-chain levels P → Q → R → S → T → Customers. At each of the five levels its price rises 25%. Production cost at P is Rs. 120 per unit. What price do customers pay?
Each level multiplies price by 1.25, including the increase applied at P. Five increases give $120(1.25)^5=366.2109375$ rupees. Thus D, Rs. 366.21. Adding five lots of 25% of the original cost would ignore compounding.
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