A person buys three articles P, Q and R for ₹ 3,330. If P costs 25% more than R and R costs 20% more than Q, then what is the cost of P?

Correct Option: (d) ₹ 1,350

Let the cost of article Q be Q. We are given that article R costs 20% more than Q. Thus: Cost of R = Q + 0.20Q = 1.2Q. We are also given that article P costs 25% more than R. Thus: Cost of P = R + 0.25R = 1.25R = 1.25 × (1.2Q) = 1.5Q. The total cost of articles P, Q, and R is ₹ 3,330: P + Q + R = 3330 ⇒ 1.5Q + Q + 1.2Q = 3330 ⇒ 3.7Q = 3330 ⇒ Q = 3330 / 3.7 = 900. Now, we can find the cost of P: Cost of P = 1.5Q = 1.5 × 900 = ₹ 1,350. Thus, the cost of article P is ₹ 1,350. This makes option (d) the correct answer. The other options are incorrect because they arise from setting up incorrect ratios or percentages.