Can someone please help me ASAP...?

0 ⤊

Can someone please help me ASAP...?

The sum of my ones digit and tens digit is also 10. However, my ones digit is greater than my tens digit. I am a prime number less than 30. What number am I?

2007-11-19 12:37:16 · 3 answers · asked by sades0308 2 in Science & Mathematics ➔ Mathematics

3 answers

You have two choices for the tens digit if the number is less than 30... 2 and 1 (well technically 0, but that would make the other "digit" a 10).

If the digit is 2, then the other digit is 8, but 28 isn't prime.
If the digit is 1, then the other digit is 9, and 19 *is* prime.

The answer is 19.

2007-11-19 12:55:59 · answer #1 · answered by Puzzling 7 · 0⤊ 0⤋

2007-11-19 20:42:03 · answer #2 · answered by randy3soccer 1 · 0⤊ 0⤋

2007-11-19 20:41:53 · answer #3 · answered by jervois.east 2 · 0⤊ 0⤋