A vendor sold 20 kg of potato at 18 Rs. per kg. He bought 2-liter milk at the rate of 46 Rs./liter, 2 kg sugar at the rate of 35 Rs./kg and 10 packets of chips at the cost of 5 Rs./packet. Now how much money is left with the man?

1. A

   Rs. 128

2. B

   Rs. 132

3. C

   Rs. 148

4. D

   Rs. 152

Appeared in: KGMU 2023

Explanation

• The total earnings are calculated by multiplying the quantity of potatoes sold by the price per kg (20 kg × 18 Rs./kg = 360 Rs.).
• The total expenses are the sum of the costs of all items purchased: milk (2 × 46 = 92 Rs.), sugar (2 × 35 = 70 Rs.), and chips (10 × 5 = 50 Rs.), which totals 212 Rs.
• The money left is the difference between the total earnings and total expenses (360 Rs. - 212 Rs. = 148 Rs.).

Why Other Options Were Wrong

• Option A: This amount is incorrect and likely results from a miscalculation in either the earnings, the expenses, or the final subtraction.
• Option B: This value is incorrect. It may be the result of an error in adding the expenses or subtracting them from the total earnings.
• Option D: This amount is incorrect. A common mistake could be a simple subtraction error, for example, calculating 360 - 208 instead of 360 - 212.

Related Visual

• Visual 1: No visual aid is required for this type of mathematical question.

Clinical Relevance

• Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain This question tests basic arithmetic operations (multiplication, addition, and subtraction) within the context of a practical word problem involving profit and loss as background academic context rather than a clinical decision trigger.
• This question assesses fundamental numeracy and problem-solving skills, which are essential for everyday life and various professional contexts.
• It highlights the importance of careful, step-by-step calculation to arrive at an accurate financial outcome.
• What if the vendor also bought 1 kg of onions at 30 Rs./kg? The total expenses would increase to 212 + 30 = 242 Rs., and the money left would be 360 - 242 = 118 Rs.

How to Approach the Question

• First, carefully read the problem to identify all sources of income and all expenses.
• Calculate the total income or earnings by multiplying the quantity sold by the selling price.
• Calculate the cost of each expense item by multiplying the quantity purchased by the purchase price.
• Sum all the individual costs to find the total expenditure.
• Subtract the total expenditure from the total income to find the final amount of money left.
• Double-check your calculations to prevent simple arithmetic errors.

Concept Tested & Keywords

• Concept Tested: This question tests basic arithmetic operations (multiplication, addition, and subtraction) within the context of a practical word problem involving profit and loss.
• Stem keywords: sold, potato, bought, milk, sugar, chips, money left
• Lead-in keywords: how much

Question ID

QVLB2g4Bzf_mcQUAn4uhGK

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