Question 926846
The number I'm thinking of is between 12 and 32.
When I divide it by 5, it leaves a remainder of 1
When I divide it by 4, it leaves a remainder of 2
The number is ?

a modulo b or a % b gives remainder of division

a%b is the remainder of a / b, example 5 % 2 = 1

let n be the number we want to find

n % 5 = 1 --> 16, 21, 26, 31 (all numbers that are multiples of 5 between 12 and 32 and adding 1 to each of them, notice these numbers each have a difference of 5)

n % 4 = 2 --> 14, 18, 22, 26, 30  (all numbers that are multiples of 4 between 12 and 32 and adding 2 to each of them, notice these numbers each have a difference of 4)

26 satisfies both requirements
26 % 5 = 1 and 26 % 4 = 2
so 26 is the number you wanted to find