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7 years ago, the ages (in years) of A and B were in the ratio 4 : 5 and 7 years hence, they will be in the ratio 5 : 6. The present age of B is
  • a)
    56 years
  • b)
    63 years
  • c)
    70 years
  • d)
    77 years
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
7 years ago, the ages (in years) of A and B were in the ratio 4 : 5 a...
7 years ago, A's age = 4x years and B's age = 5x years
⇒ 25x + 70 = 24x + 84
⇒ x = 84 - 70 = 14
∴ B's present age
= 5x + 7 = 5 × 14 + 7 = 77 years
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7 years ago, the ages (in years) of A and B were in the ratio 4 : 5 and 7 years hence, they will be in the ratio 5 : 6. The present age of B isa)56 yearsb)63 yearsc)70 yearsd)77 yearsCorrect answer is option 'D'. Can you explain this answer?
Question Description
7 years ago, the ages (in years) of A and B were in the ratio 4 : 5 and 7 years hence, they will be in the ratio 5 : 6. The present age of B isa)56 yearsb)63 yearsc)70 yearsd)77 yearsCorrect answer is option 'D'. Can you explain this answer? for SSC CGL 2024 is part of SSC CGL preparation. The Question and answers have been prepared according to the SSC CGL exam syllabus. Information about 7 years ago, the ages (in years) of A and B were in the ratio 4 : 5 and 7 years hence, they will be in the ratio 5 : 6. The present age of B isa)56 yearsb)63 yearsc)70 yearsd)77 yearsCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for SSC CGL 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 7 years ago, the ages (in years) of A and B were in the ratio 4 : 5 and 7 years hence, they will be in the ratio 5 : 6. The present age of B isa)56 yearsb)63 yearsc)70 yearsd)77 yearsCorrect answer is option 'D'. Can you explain this answer?.
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