Question

20. The tens and units digit of the number are the same. When the number is

added to its reverse, the sum is 110. What is the number?​

Answer 1

Given : The tens and units digit of the number are the same

Let the given number be : NN

Given : When the number is added to its reverse, the sum is 110

As the tens and units digit of the number are same, the reversed number is also : NN

⇒ NN + NN = 110

⇒ 2NN = 110

⇒ NN = 55

Answer: The Number is 55

Answer 2

55

Explanation:

55 has both its tens and units the same and when you reverse it, it is still 55 hence 55+55 is 110