When a number is divided by 10, the remainder is 7.
When the same number is divided by 9, the remainder is also 7.
What is the smallest possible number if the number is more than 89?
Multiples of 10: 10, 20, 30, 40, 50, 60, 70, 80, 90
Multiples of 9: 9, 18, 27, 36, 45, 54, 63, 72, 81, 90
Lowest common multiple of 10 and 9 = 90
90 + 7 = 97
97 is more than 89.
Smallest possible number: 97
Answer(s): 97