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A part of the monthly expenses of a family is constant and the remaining varies with the price of wheat. When the price of wheat is ₹ 250 per quintal, the total monthly expenses are ₹ 1000 and when it is ₹ 240 per quintal, the total monthly expenses ₹  980 per quintal. The total monthly expenses of the family when the cost of wheat is ₹ 350 per quintal, is
  • a)
    500
  • b)
    1200
  • c)
    – 1200
  • d)
    – 500
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
A part of the monthly expenses of a family is constant and the remaini...
Let the constant part of the expenditure = ₹ x and the variable part = ₹ y × price of wheat.
Given that when the price of wheat is ₹ 250 per quintal, the total expenses are ₹ 1000.
∴ x + 250y = 1000 ........... (1)
Given also that when the price of wheat is ₹ 240 per quintal, the total expenses are ₹ 980
∴ x + 240y = 980 ........... (2)
Subtracting (2) from (1),
10y = 20 ⇒ y = 2
Substituting this value of y in (1)
x + 250 (2) = 1000
⇒ x = 1000 – 500 = 500
Therefore, when the price of wheat is ₹ 350 per quintal, total expenses = x + 350 y = 500 + 350 (2) = ₹ 1200
∴ total expenses = ₹ 1200
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A part of the monthly expenses of a family is constant and the remaining varies with the price of wheat. When the price of wheat is 250 per quintal, the total monthly expenses are 1000 and when it is 240 per quintal, the total monthly expenses 980 per quintal. The total monthly expenses of the family when the cost of wheat is 350 per quintal, isa)500b)1200c)– 1200d)– 500Correct answer is option 'B'. Can you explain this answer?
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A part of the monthly expenses of a family is constant and the remaining varies with the price of wheat. When the price of wheat is 250 per quintal, the total monthly expenses are 1000 and when it is 240 per quintal, the total monthly expenses 980 per quintal. The total monthly expenses of the family when the cost of wheat is 350 per quintal, isa)500b)1200c)– 1200d)– 500Correct answer is option 'B'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about A part of the monthly expenses of a family is constant and the remaining varies with the price of wheat. When the price of wheat is 250 per quintal, the total monthly expenses are 1000 and when it is 240 per quintal, the total monthly expenses 980 per quintal. The total monthly expenses of the family when the cost of wheat is 350 per quintal, isa)500b)1200c)– 1200d)– 500Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A part of the monthly expenses of a family is constant and the remaining varies with the price of wheat. When the price of wheat is 250 per quintal, the total monthly expenses are 1000 and when it is 240 per quintal, the total monthly expenses 980 per quintal. The total monthly expenses of the family when the cost of wheat is 350 per quintal, isa)500b)1200c)– 1200d)– 500Correct answer is option 'B'. Can you explain this answer?.
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