Question

A three-digit number satisfies the following conditions: The digits are consecutive whole numbers in increasing order; the sum of each pair of digits is greater than 14 and less than 18; and the tens digit is an even number. what is the number

Answer 1

From the given conditions, we can deduce that the tens digit must be 2, since it is the only even number between 0 and 9.

Let's consider the hundreds digit. Since the digits are consecutive whole numbers in increasing order, the only possibility for the hundreds digit is 1.

Finally, we need to find the units digit. The sum of each pair of digits is greater than 14 and less than 18. In this case, the only combination that satisfies this condition is 1 + 2 = 3.

Therefore, the number is 123.