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The electricity bill of a certain establishment is partly fixed and partly varies as the number of units of electricity consumed. When in a certain month 540 units are consumed, the bill is Rs. 1,800. In another month 620 units are consumed and the bill is Rs. 2,040. In yet another month 500 units are consumed. The bill for that month would be
- a)Rs. 1,560
- b)Rs. 1,680
- c)Rs. 1,840
- d)Rs. 1,950
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
The electricity bill of a certain establishment is partly fixed and pa...
Let V be the variable part of the bill and F be the fixed part. Given 540V + F = 1800 & 620 V + F = 2040. Solving these we get V = 3 and F = 180. So when 500 units are consumed, 500 V + F = 500 - 3 + 180 = Rs. 1680.
Most Upvoted Answer
The electricity bill of a certain establishment is partly fixed and pa...
Given data:
- The bill is partly fixed and partly varies as the number of units of electricity consumed.
- When 540 units are consumed, the bill is Rs. 1,800.
- When 620 units are consumed, the bill is Rs. 2,040.
- We need to find the bill for the month when 500 units are consumed.
Finding the fixed and variable charges:
Let the fixed charge be 'a' and the variable charge per unit be 'b'. Then we can write two equations based on the given data:
- 540b + a = 1800
- 620b + a = 2040
Subtracting the first equation from the second, we get:
80b = 240
b = 3
Substituting this value of 'b' in either of the equations above, we get:
a = 1260
Therefore, the fixed charge is Rs. 1260 and the variable charge per unit is Rs. 3.
Calculating the bill for 500 units:
Using the above values of 'a' and 'b', we can calculate the bill for 500 units as follows:
Bill = fixed charge + variable charge * number of units
Bill = 1260 + 3 * 500
Bill = Rs. 1680
Hence, the correct answer is option 'B' - Rs. 1680.
- The bill is partly fixed and partly varies as the number of units of electricity consumed.
- When 540 units are consumed, the bill is Rs. 1,800.
- When 620 units are consumed, the bill is Rs. 2,040.
- We need to find the bill for the month when 500 units are consumed.
Finding the fixed and variable charges:
Let the fixed charge be 'a' and the variable charge per unit be 'b'. Then we can write two equations based on the given data:
- 540b + a = 1800
- 620b + a = 2040
Subtracting the first equation from the second, we get:
80b = 240
b = 3
Substituting this value of 'b' in either of the equations above, we get:
a = 1260
Therefore, the fixed charge is Rs. 1260 and the variable charge per unit is Rs. 3.
Calculating the bill for 500 units:
Using the above values of 'a' and 'b', we can calculate the bill for 500 units as follows:
Bill = fixed charge + variable charge * number of units
Bill = 1260 + 3 * 500
Bill = Rs. 1680
Hence, the correct answer is option 'B' - Rs. 1680.
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The electricity bill of a certain establishment is partly fixed and partly varies as the number of units of electricity consumed. When in a certain month 540 units are consumed, the bill is Rs. 1,800. In another month 620 units are consumed and the bill is Rs. 2,040. In yet another month 500 units are consumed. The bill for that month would bea)Rs. 1,560b)Rs. 1,680c)Rs. 1,840d)Rs. 1,950Correct answer is option 'B'. Can you explain this answer?
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The electricity bill of a certain establishment is partly fixed and partly varies as the number of units of electricity consumed. When in a certain month 540 units are consumed, the bill is Rs. 1,800. In another month 620 units are consumed and the bill is Rs. 2,040. In yet another month 500 units are consumed. The bill for that month would bea)Rs. 1,560b)Rs. 1,680c)Rs. 1,840d)Rs. 1,950Correct answer is option 'B'. Can you explain this answer? for Quant 2025 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about The electricity bill of a certain establishment is partly fixed and partly varies as the number of units of electricity consumed. When in a certain month 540 units are consumed, the bill is Rs. 1,800. In another month 620 units are consumed and the bill is Rs. 2,040. In yet another month 500 units are consumed. The bill for that month would bea)Rs. 1,560b)Rs. 1,680c)Rs. 1,840d)Rs. 1,950Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Quant 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The electricity bill of a certain establishment is partly fixed and partly varies as the number of units of electricity consumed. When in a certain month 540 units are consumed, the bill is Rs. 1,800. In another month 620 units are consumed and the bill is Rs. 2,040. In yet another month 500 units are consumed. The bill for that month would bea)Rs. 1,560b)Rs. 1,680c)Rs. 1,840d)Rs. 1,950Correct answer is option 'B'. Can you explain this answer?.
The electricity bill of a certain establishment is partly fixed and partly varies as the number of units of electricity consumed. When in a certain month 540 units are consumed, the bill is Rs. 1,800. In another month 620 units are consumed and the bill is Rs. 2,040. In yet another month 500 units are consumed. The bill for that month would bea)Rs. 1,560b)Rs. 1,680c)Rs. 1,840d)Rs. 1,950Correct answer is option 'B'. Can you explain this answer? for Quant 2025 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about The electricity bill of a certain establishment is partly fixed and partly varies as the number of units of electricity consumed. When in a certain month 540 units are consumed, the bill is Rs. 1,800. In another month 620 units are consumed and the bill is Rs. 2,040. In yet another month 500 units are consumed. The bill for that month would bea)Rs. 1,560b)Rs. 1,680c)Rs. 1,840d)Rs. 1,950Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Quant 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The electricity bill of a certain establishment is partly fixed and partly varies as the number of units of electricity consumed. When in a certain month 540 units are consumed, the bill is Rs. 1,800. In another month 620 units are consumed and the bill is Rs. 2,040. In yet another month 500 units are consumed. The bill for that month would bea)Rs. 1,560b)Rs. 1,680c)Rs. 1,840d)Rs. 1,950Correct answer is option 'B'. Can you explain this answer?.
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