Difficulty: Easy
Correct Answer: ₹ 38.33
Explanation:
Introduction / Context:This problem checks weighted average with unequal counts at different prices. We combine total cost over all items and divide by the total number of articles to obtain a single per-article average.
Given Data / Assumptions:
Concept / Approach:Average price per article = total expenditure / total number of articles. Since quantities differ by item type, compute each subtotal and add them before dividing by 30.
Step-by-Step Solution:
Cost of pants = 5 * 25 = ₹125Cost of shirts = 10 * 50 = ₹500Cost of ties = 15 * 35 = ₹525Total cost = 125 + 500 + 525 = ₹1150Average price = 1150 / 30 = ₹38.333… ≈ ₹38.33Verification / Alternative check:Use a calculator to confirm 1150 divided by 30. Rounding to two decimals yields ₹38.33, which is consistent with currency presentation.
Why Other Options Are Wrong:
Common Pitfalls:Adding the three prices and dividing by 3 ignores the different quantities. Always weight by quantity purchased.
Final Answer:₹ 38.33
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