Question

The cube of a two digit number may have seven or more digits.

• A. True
• B. False
• C. Insufficient Data
• D. None of these

Answer 1

The correct option is B False

Multiplying a number with $n$ digits with a number with $m$ digits, will give another number with $m+n$ or less digits.

Then, the cube of a two digit number will clearly have less than seven digits.

Eg. The highest two digit number is $99$, whose cube is ${99}^3=970299$, which is a six digit number.

That is, the given statement is false.

Hence, option $B$ is correct.