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Five children are born to Riya each at a gap of 3 years such that the age of eldest child seven years later if doubled becomes 3 less than Riya's present age. 15 years hence, the average of the three youngest children becomes 23 less than Riya's age 3 years ago. Find the age of Riya and the age of the youngest child, respectively.
  • a)
    47 years, 3 years
  • b)
    57 years, 6 years
  • c)
    57 years, 12 years
  • d)
    48 years, 3 years
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Five children are born to Riya each at a gap of 3 years such that the...
Let present age of Riya = 'm' years
Five children in ascending order of their present age be a, (a+3) , (a+6) , (a+9) and (a+12)
Now,
2*(a+12+7) = m - 3
m = 2a + 41 ....(i)
15 years hence,
(a+a+3+a+6+15*3)/3 + 23 = 2a + 41 - 3
a + 18 + 23 = 2a + 38
a = 3
So,
Riya = m = 2a + 41 = 47 years
Youngest = a = 3 years
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Five children are born to Riya each at a gap of 3 years such that the age of eldest child seven years later if doubled becomes 3 less than Riya's present age. 15 years hence, the average of the three youngest children becomes 23 less than Riya's age 3 years ago. Find the age of Riya and the age of the youngest child, respectively.a)47 years, 3 yearsb)57 years, 6 yearsc)57 years, 12 yearsd)48 years, 3 yearsCorrect answer is option 'A'. Can you explain this answer?
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Five children are born to Riya each at a gap of 3 years such that the age of eldest child seven years later if doubled becomes 3 less than Riya's present age. 15 years hence, the average of the three youngest children becomes 23 less than Riya's age 3 years ago. Find the age of Riya and the age of the youngest child, respectively.a)47 years, 3 yearsb)57 years, 6 yearsc)57 years, 12 yearsd)48 years, 3 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 Five children are born to Riya each at a gap of 3 years such that the age of eldest child seven years later if doubled becomes 3 less than Riya's present age. 15 years hence, the average of the three youngest children becomes 23 less than Riya's age 3 years ago. Find the age of Riya and the age of the youngest child, respectively.a)47 years, 3 yearsb)57 years, 6 yearsc)57 years, 12 yearsd)48 years, 3 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 Five children are born to Riya each at a gap of 3 years such that the age of eldest child seven years later if doubled becomes 3 less than Riya's present age. 15 years hence, the average of the three youngest children becomes 23 less than Riya's age 3 years ago. Find the age of Riya and the age of the youngest child, respectively.a)47 years, 3 yearsb)57 years, 6 yearsc)57 years, 12 yearsd)48 years, 3 yearsCorrect answer is option 'A'. Can you explain this answer?.
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