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Monthly incomes of two persons are in the ratio 4 : 5 and their monthly expenses are in the ratio 7 : 9. If each saves Rs. 50 per month find their monthly incomes.
  • a)
    (500, 400)
  • b)
    (400, 500)
  • c)
    (300, 600)
  • d)
    (350, 550)
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Monthly incomes of two persons are in the ratio 4 : 5 and their monthl...
Given, Ratio of monthly incomes of two persons = 4 : 5
Ratio of their monthly expenses = 7 : 9
Each saves Rs. 50 per month

Let the monthly incomes of two persons be 4x and 5x respectively
Let the monthly expenses of two persons be 7y and 9y respectively

Then,

4x - 7y = 50 ...(1) (As person 1 saves Rs. 50 per month)
5x - 9y = 50 ...(2) (As person 2 saves Rs. 50 per month)

Solving equations (1) and (2), we get:

x = 100
y = 75

Therefore, the monthly incomes of two persons are:

Person 1 = 4x = 4(100) = Rs. 400
Person 2 = 5x = 5(100) = Rs. 500

Hence, the answer is option (b) (400, 500).
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Community Answer
Monthly incomes of two persons are in the ratio 4 : 5 and their monthl...
Put in equation 4x+7y=50 &5x+9y=50 then 1st equation multiple 5 and 2nd is 4 and solve the equations then you find y=50 then put in 1st equcation then 4x=400÷4=100 and income ratio is 4 ×100 =400 and 100 ×5=500 so answer is 400&500
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Monthly incomes of two persons are in the ratio 4 : 5 and their monthly expenses are in the ratio 7 : 9. If each saves Rs. 50 per month find their monthly incomes.a)(500, 400)b)(400, 500)c)(300, 600)d)(350, 550)Correct answer is option 'B'. Can you explain this answer?
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Monthly incomes of two persons are in the ratio 4 : 5 and their monthly expenses are in the ratio 7 : 9. If each saves Rs. 50 per month find their monthly incomes.a)(500, 400)b)(400, 500)c)(300, 600)d)(350, 550)Correct answer is option 'B'. Can you explain this answer? for CA Foundation 2024 is part of CA Foundation preparation. The Question and answers have been prepared according to the CA Foundation exam syllabus. Information about Monthly incomes of two persons are in the ratio 4 : 5 and their monthly expenses are in the ratio 7 : 9. If each saves Rs. 50 per month find their monthly incomes.a)(500, 400)b)(400, 500)c)(300, 600)d)(350, 550)Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for CA Foundation 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Monthly incomes of two persons are in the ratio 4 : 5 and their monthly expenses are in the ratio 7 : 9. If each saves Rs. 50 per month find their monthly incomes.a)(500, 400)b)(400, 500)c)(300, 600)d)(350, 550)Correct answer is option 'B'. Can you explain this answer?.
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