How many two digit number are there which on being reversed gives out perfect square two digit number?

So, there are 17 two-digit numbers whose sum of digits is a perfect square.

When a two digit number added to another two digit number what is it called?

The ones digit of a 2-digit number is twice the tens digit. When the number formed by reversing the digits is added to the original number, the sum is 99. Find the original number.

How many 2 digit perfect square number are there whose unit digit is a perfect cube?

One way is to list out all the square numbers with two digits: 16, 25, 36, 49, 64, 81. Then list out all the cube numbers with two digits: 27, 64. The answer is the only number in both lists: 64.

What is the sum of two digit number?

Let the digit at the tens place be x and the digit at the unit place be y. Required Number = (10x+y). Number obtained on reversing the digits = (10y+x). Hence, the required number is 57.

How many two digit numbers that increased by 75\% where their digits are reversed?

4 two digit numbers are possible such that, When increased by 75\%, The digits are reversed.

How do you express the first two-digit number?

You can express the first two-digit number as (10x+y) where x is the first digit and y is the second digit. Then the second two-digit number, with the digits reversed]

How do you reverse a 5 digit number in C?

If a five-digit number is input through the keyboard, write a program to reverse the number. /*Use an integer variable to store the reverse (say rev_num). take out the first (rightmost) digit of the number. Take out the 2nd digit from right. Now multiply rev_num by 10 and add this new digit to it.

How many perfect square numbers are there between 10 and 200?

Answer is 8 numbers and the numbers are 29,92,38,83,47,74,56,65. The range of sum of any two 2-digit numbers is between 10 and 200. Let us make the list of perfect square numbers that are between 10 and 200.

What is the sum of two two-digit numbers?

If you take a particular two-digit number, reverse its digits to make a second two-digit number, and add these two numbers together, their sum will be 121. What is the original number? There isn’t just one answer. The first two-digit number is 65. The second two-digit number is 56. Or… The first two-digit number is 74.