When asked her age, Ms Marple says 'I will be n years old in the year n^2.' How old was she in
2000?
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Answer:
Ms. Maple was 20 years old in 2000.
CALCULATION OF n
Ms. Maple will be n year old in the year n².
As such we need to find a year in near future which is a perfect square.
It is observed that the nearest perfect square to the current year is 2025.
So n² = 2025 = 45²
or n² = 45²
or n = 45
So, Ms. Maple will be 45 year old in 2025.
HER AGE IN 2000
2000 is 25 years in the past from 2025
So, her age in 2000
= Age in 2025 - 25
= 45 - 25
= 20
Ms. Maple was 20 years old in 2000
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