alleryWhich of the following statements is TRUE?
AA perfect cube can end with the digit 8
BIf a number ends in 2, its cube cannot end in 8
CCube of an odd number is even
DCube of any 2-digit number always has 7 or more digits
Answer & Solution
Correct answer: A. A perfect cube can end with the digit 8
(A) is TRUE: 2³ = 8, 12³ = 1728, 22³ = 10648 — all end in 8.
(B) is FALSE: 2³ ends in 8 and starts with units digit 2.
(C) is FALSE: cubes of odd numbers are odd.
(D) is FALSE: the smallest 2-digit cube (10³ = 1000) has only 4 digits.
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