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Priya’s age was a cube of an integral number (different from 1) four years ago and the square of an integral number after four years. How long should she wait so that her age becomes square of a number in the previous year and cube of a number in the next year?
  • a)
    7 years
  • b)
    12 years
  • c)
    14 years
  • d)
    21 years
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Priya’s age was a cube of an integral number (different from 1) ...
Let present age of Priya be p
p-4 = n3
p+4 = √k
since n is a no >1 on putting n= 2 we get p = 12
So p+4 = 16 which is square of an integral number thus consistent with given information
Now after how many years her age becomes such that age – 1 is a square and age + 1 is a cube
Using option if we add 14 years to the current age, we get age = 26 years
Here 25 is a square and 27 is a cube thus making 14 the correct answer.
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Priya’s age was a cube of an integral number (different from 1) ...
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Priya’s age was a cube of an integral number (different from 1) four years ago and the square of an integral number after four years. How long should she wait so that her age becomes square of a number in the previous year and cube of a number in the next year?a)7 yearsb)12 yearsc)14 yearsd)21 yearsCorrect answer is option 'C'. Can you explain this answer?
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Priya’s age was a cube of an integral number (different from 1) four years ago and the square of an integral number after four years. How long should she wait so that her age becomes square of a number in the previous year and cube of a number in the next year?a)7 yearsb)12 yearsc)14 yearsd)21 yearsCorrect answer is option 'C'. Can you explain this answer? for Defence 2024 is part of Defence preparation. The Question and answers have been prepared according to the Defence exam syllabus. Information about Priya’s age was a cube of an integral number (different from 1) four years ago and the square of an integral number after four years. How long should she wait so that her age becomes square of a number in the previous year and cube of a number in the next year?a)7 yearsb)12 yearsc)14 yearsd)21 yearsCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Defence 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Priya’s age was a cube of an integral number (different from 1) four years ago and the square of an integral number after four years. How long should she wait so that her age becomes square of a number in the previous year and cube of a number in the next year?a)7 yearsb)12 yearsc)14 yearsd)21 yearsCorrect answer is option 'C'. Can you explain this answer?.
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