It is greater than 30 and less than 40.If you add the digits,the sum is 10
31, 32, 33, 34, 35, 36, 37, 38, 39
Which number has digits that add up to 10?
For instance, 31 = 3 + 1 = 4.
Duh! That's 37.
To find the number that is greater than 30 and less than 40, with a sum of digits equal to 10, we can use a systematic approach.
First, let's list all the numbers from 31 to 39:
31, 32, 33, 34, 35, 36, 37, 38, 39
Next, we need to check if the sum of the digits of each number is equal to 10. We can calculate the sum by adding the tens digit and the ones digit together.
Checking each number:
31: 3 + 1 = 4
32: 3 + 2 = 5
33: 3 + 3 = 6
34: 3 + 4 = 7
35: 3 + 5 = 8
36: 3 + 6 = 9
37: 3 + 7 = 10
38: 3 + 8 = 11
39: 3 + 9 = 12
From the list, we see that the only number that has a sum of digits equal to 10 is 37.
Therefore, the number that is greater than 30 and less than 40, with a sum of digits equal to 10, is 37.