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D is 4 years younger than B, and C is 4 years older than A. A and B are twins. If the average age of all the four boys is 11 years, then the sum of the ages of the youngest and the oldest boy is
  • a)
    22 years
  • b)
    20 years
  • c)
    24 years
  • d)
    18 years
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
D is 4 years younger than B, and C is 4 years older than A. A and B a...
Let the age of A = B = y years
Age of D = y-4 years
Age of C = y+4 years
Then,
y-4+y+y+y+4 = 4 x11
y = 11
Sum of ages of the youngest and oldest boy = 7+15 = 22 years
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D is 4 years younger than B, and C is 4 years older than A. A and B are twins. If the average age of all the four boys is 11 years, then the sum of the ages of the youngest and the oldest boy isa)22 yearsb)20 yearsc)24 yearsd)18 yearsCorrect answer is option 'A'. Can you explain this answer?
Question Description
D is 4 years younger than B, and C is 4 years older than A. A and B are twins. If the average age of all the four boys is 11 years, then the sum of the ages of the youngest and the oldest boy isa)22 yearsb)20 yearsc)24 yearsd)18 yearsCorrect answer is option 'A'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about D is 4 years younger than B, and C is 4 years older than A. A and B are twins. If the average age of all the four boys is 11 years, then the sum of the ages of the youngest and the oldest boy isa)22 yearsb)20 yearsc)24 yearsd)18 yearsCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for D is 4 years younger than B, and C is 4 years older than A. A and B are twins. If the average age of all the four boys is 11 years, then the sum of the ages of the youngest and the oldest boy isa)22 yearsb)20 yearsc)24 yearsd)18 yearsCorrect answer is option 'A'. Can you explain this answer?.
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