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The income of A, B, and C are in the ratio 3 : 4 : 7. If their incomes be changed such that the new income of A is 50% increased, 25% increased for B and 25% decrease for C. Find the ratio of their new incomes.
  • a)
    18 : 40 : 23
  • b)
    17 : 12 : 21
  • c)
    18 : 20 : 21
  • d)
    28 : 20 : 21
  • e)
    None of these
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
The income of A, B, and C are in the ratio 3 : 4 : 7. If their incomes...
C) 18 : 20 : 21
Explanation: Previous ratio = 3 : 4 : 7 New ratio = (150/100) * 3 : (125/100) * 4 : (75/100) * 7
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Most Upvoted Answer
The income of A, B, and C are in the ratio 3 : 4 : 7. If their incomes...
C) 18 : 20 : 21
Explanation: Previous ratio = 3 : 4 : 7 New ratio = (150/100) * 3 : (125/100) * 4 : (75/100) * 7
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The income of A, B, and C are in the ratio 3 : 4 : 7. If their incomes...
Ratio of incomes of A, B and C = 3:4:7

Let the common ratio be x.

Income of A = 3x
Income of B = 4x
Income of C = 7x

New income of A = 150% of 3x = 4.5x
New income of B = 125% of 4x = 5x
New income of C = 75% of 7x = 5.25x

Ratio of new incomes = 4.5x : 5x : 5.25x

Divide each term by 0.75x to get the simplified ratio:

= 6 : 8.33 : 7

Multiply each term by 3 to get rid of decimal points:

= 18 : 25 : 21

Therefore, the ratio of their new incomes is 18:25:21, which is option C.
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The income of A, B, and C are in the ratio 3 : 4 : 7. If their incomes be changed such that the new income of A is 50% increased, 25% increased for B and 25% decrease for C. Find the ratio of their new incomes.a)18 : 40 : 23b)17 : 12 : 21c)18 : 20 : 21d)28 : 20 : 21e)None of theseCorrect answer is option 'C'. Can you explain this answer?
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The income of A, B, and C are in the ratio 3 : 4 : 7. If their incomes be changed such that the new income of A is 50% increased, 25% increased for B and 25% decrease for C. Find the ratio of their new incomes.a)18 : 40 : 23b)17 : 12 : 21c)18 : 20 : 21d)28 : 20 : 21e)None of theseCorrect answer is option 'C'. Can you explain this answer? for Quant 2024 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about The income of A, B, and C are in the ratio 3 : 4 : 7. If their incomes be changed such that the new income of A is 50% increased, 25% increased for B and 25% decrease for C. Find the ratio of their new incomes.a)18 : 40 : 23b)17 : 12 : 21c)18 : 20 : 21d)28 : 20 : 21e)None of theseCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Quant 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The income of A, B, and C are in the ratio 3 : 4 : 7. If their incomes be changed such that the new income of A is 50% increased, 25% increased for B and 25% decrease for C. Find the ratio of their new incomes.a)18 : 40 : 23b)17 : 12 : 21c)18 : 20 : 21d)28 : 20 : 21e)None of theseCorrect answer is option 'C'. Can you explain this answer?.
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