Question

If x is ones digit and y is tens digit of a two digit number, then the cube of the number will be _________. *
1 point
A. (10y + x)3
B. (10y + x)2
C. (10x + y)3
D. None of these​

Answer 1

A. (10y + x)3

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Answer 2

The cube of the number having given digits will be (10y + x)³. (option A)

Given,

For a two digit number,

ones digit = x,

tens digit = y.

To find,

The cube of this number.

Solution,

It can be seen that here, a two-digit number is given such that it has

x as ones digit, and

y as tens digit.

Now we know that,

to write a two-digit number, we have to multiply the tens digit by 10, and add the product to the unit, or the ones digit.

So here, the number will be written as (10y + x).

Now, the cube of this number will be

(10y + x)³.

Therefore, the cube of the number having given digits will be (10y + x)³. (option A)

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