Question

I am a 3 digit odd number greater than 800. My tens digit is 2 less than my ones digit. I am disable by 3 but not 5. The sum of my digit is 12. What number am I?

Answer 1

Answer:

813

Step-by-step explanation:

The number should be in between 800 and 999.

Odd number means the last digit should be 1,3,5,7 or 9.

The number is divisible by 3 but not divisible by 5 which means the last digit should be 1,3,7 or 9.

The tens digit is 2 less than the ones digit, which means the number should be n13 or n35 or n57 or n79, where n is the hundredth digit.

Sum of the digits is 12, which means the value of n=8 in n13 so n+1+3=12 ==> n=8

So the number is 813