Question

If the number $${(33333)^2} + 22222$$ is expressed as a single decimal number, then the sum of its digit is

Answer 1

Hint: In the question it is given that that the number is expressed in a decimal number, so no recurring answer we will get. We have given that $${(33333)^2} + 22222$$ we will square the first number and then will add it to the second number to get an answer, after that we will add the digits of the final number.

Complete step-by-step answer:
We have given that $${(33333)^2} + 22222$$
Firstly we have to square the first number then we will add it to second number
=${(33333)^2}$ + 22222
= 1111088889 + 22222
 = 1111111111
Now let's add digits of number which we got in final answer,
$\Rightarrow$ $$1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 = 10$$
So we can say that if the number $${(33333)^2} + 22222$$ is expressed as a single decimal number, then the sum of its digit is 10.
Hence, answer is 10.

Note: All we did here was squaring and adding, hence we got the final answer. The decimal system has been extended to infinite decimals for representing any real number, by using an infinite sequence of digits after the decimal separator.