Frank could have 30, 60 , 90 on his uniform
Solution:
Given that, Frank has a 2-digit number on his baseball uniform
The number is a multiple of 10 and has 3 for one of its factors
To find: Three numbers that Frank have on his uniform
Given that,
It's a multiple 10 and has 3 for one of its factors and its a 2-digit number
Let us first find the multiples of 10
The two digit multiples of 10 are:
{10, 20, 30, 40, 50, 60, 70, 80, 90}
From the above list, find the numbers which has 3 as one of its factors
Which means, find the numbers which are divisible by 3
The possible numbers = 30, 60, 90
Thus frank could have 30, 60 , 90 on his uniform