double my tens digit to get my ones digit. double me and i am less than 50? who am i
12 or 24.
I think
"double my tens digit to get my ones digit"
only possible choices:
12,24,36,48,
double those:
24,48,72,96
which in the first list are less than 50 ?
so Ana was right.
To solve this riddle, we need to find a two-digit number where the ones digit is double the tens digit and when the number is doubled, it is less than 50.
Let's start by listing all the two-digit numbers and checking them one by one.
10: The tens digit is 1, and double of 1 is 2. The doubled number, 20, is not less than 50.
11: The tens digit is 1, and double of 1 is 2. The doubled number, 22, is not less than 50.
12: The tens digit is 1, and double of 1 is 2. The doubled number, 24, is not less than 50.
...
20: The tens digit is 2, and double of 2 is 4. The doubled number, 40, is less than 50.
21: The tens digit is 2, and double of 2 is 4. The doubled number, 42, is less than 50.
So, the answer is 21 because double the tens digit (2) gives the ones digit (1), and when the number is doubled, it is less than 50.