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Kambli is a very shrewd and dishonest spice merchant. Being an electronics genius and a gadget guru, he adjusts the electronic weighing scale at his godown in such a manner that the error percentage of the scale is directly proportional to the displayed weight (in kg) of the commodity being transacted. However, to maintain his falsely portrayed honest image and goodwill in the market, he gives a discount of 10% on every transaction. The weighing scale displays 5 kg for 4 kg. If he sells the commodity at its cost price, what is the actual profit percentage when the displayed weight is 10 kg?
  • a)
    35
  • b)
    30
  • c)
    50
  • d)
    75
Correct answer is option 'A'. Can you explain this answer?
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Kambli is a very shrewd and dishonest spice merchant. Being an electro...
To solve this problem, let's break it down into steps:

1. Understanding the given information:
- Kambli adjusts the electronic weighing scale at his godown.
- The error percentage of the scale is directly proportional to the displayed weight.
- Kambli gives a discount of 10% on every transaction.
- The weighing scale displays 5 kg for 4 kg.

2. Calculating the actual weight:
- Let's assume the actual weight of the commodity is 'x' kg.
- According to the given information, the weighing scale displays 5 kg for 4 kg.
- Therefore, the displayed weight is (5/4)*x kg.

3. Calculating the error percentage:
- The error percentage is directly proportional to the displayed weight.
- Let's assume the error percentage is 'p'.
- Therefore, the error in weight is (p/100)*(5/4)*x kg.

4. Calculating the adjusted weight:
- The adjusted weight is the sum of the displayed weight and the error in weight.
- Therefore, the adjusted weight is (5/4)*x + (p/100)*(5/4)*x kg.

5. Calculating the selling price:
- Kambli sells the commodity at its cost price.
- Therefore, the selling price is the same as the adjusted weight.

6. Calculating the cost price:
- The cost price is the selling price after a discount of 10%.
- Therefore, the cost price is (90/100)*(adjusted weight) kg.

7. Calculating the profit percentage:
- Profit = Selling price - Cost price.
- Profit percentage = (Profit / Cost price) * 100.

8. Substituting the values:
- Let's consider the displayed weight as 10 kg.
- Therefore, the actual weight is (4/5)*10 = 8 kg.
- Let's assume the error percentage is 10% for simplicity.

9. Calculating the adjusted weight:
- The adjusted weight = (5/4)*8 + (10/100)*(5/4)*8 = 10 kg.

10. Calculating the cost price:
- The cost price = (90/100)*(10) = 9 kg.

11. Calculating the profit percentage:
- Profit = 10 - 9 = 1 kg.
- Profit percentage = (1/9)*100 ≈ 11.11%.

Therefore, the actual profit percentage when the displayed weight is 10 kg is approximately 11.11%. None of the given answer options match this result. Hence, the given answer options are incorrect.
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A large store has only three departments, Clothing, Produce, and Electronics. The following figure shows the percentages of revenue and cost from the three departments for the years 2016, 2017 and 2018. The dotted lines depict percentage levels. So for example, in 2016, 50% of store's revenue came from its Electronics department while 40% of its costs were incurred in the Produce department.In this setup, Profit is computed as (Revenue - Cost) and Percentage Profit as Profit/Cost × 100%.It is known that 1. The percentage profit for the store in 2016 was 100%. 2. The store’s revenue doubled from 2016 to 2017, and its cost doubled from 2016 to 2018. 3. There was no profit from the Electronics department in 2017. 4. In 2018, the revenue from the Clothing department was the same as the cost incurred in the Produce department.Q. What was the approximate difference in profit percentages of the store in 2017 and 2018?

A large store has only three departments, Clothing, Produce, and Electronics. The following figure shows the percentages of revenue and cost from the three departments for the years 2016, 2017 and 2018. The dotted lines depict percentage levels. So for example, in 2016, 50% of store's revenue came from its Electronics department while 40% of its costs were incurred in the Produce department.In this setup, Profit is computed as (Revenue - Cost) and Percentage Profit as Profit/Cost × 100%.It is known that 1. The percentage profit for the store in 2016 was 100%. 2. The store’s revenue doubled from 2016 to 2017, and its cost doubled from 2016 to 2018. 3. There was no profit from the Electronics department in 2017. 4. In 2018, the revenue from the Clothing department was the same as the cost incurred in the Produce department.Q. What percentage of the total profits for the store in 2016 was from the Electronics department? Correct answer is '70'. Can you explain this answer?

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InstructionsComprehension:A large store has only three departments, Clothing, Produce, and Electronics. The following figure shows the percentages of revenue and cost from the three departments for the years 2016, 2017 and 2018. The dotted lines depict percentage levels. So for example, in 2016, 50% of stores revenue came from its Electronics department while 40% of its costs were incurred in the Produce department.In this setup, Profit is computed as (Revenue - Cost) and Percentage Profit as Profit/Cost × 100%.It is known that1. The percentage profit for the store in 2016 was 100%.2. The store’s revenue doubled from 2016 to 2017, and its cost doubled from 2016 to 2018.3. There was no profit from the Electronics department in 2017.4. In 2018, the revenue from the Clothing department was the same as the cost incurred in the Produce department.Q.What was the percentage profit of the store in 2018? Correct answer is '25'. Can you explain this answer?

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Kambli is a very shrewd and dishonest spice merchant. Being an electronics genius and a gadget guru, he adjusts the electronic weighing scale at his godown in such a manner that the error percentage of the scale is directly proportional to the displayed weight (in kg) of the commodity being transacted. However, to maintain his falsely portrayed honest image and goodwill in the market, he gives a discount of 10% on every transaction. The weighing scale displays 5 kg for 4 kg. If he sells the commodity at its cost price, what is the actual profit percentage when the displayed weight is 10 kg?a)35b)30c)50d)75Correct answer is option 'A'. Can you explain this answer?
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