Ena's age was square of a number last year and it will be cube of a nu – McqOptions

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1.	Ena's age was square of a number last year and it will be cube of a number next year. How long must at least she wait before her age be again the cube of a number?
A.	10 years
B.	20 years
C.	38 years
D.	42 years
Answer» D. 42 years

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