Question

When a number is divided by 5 the answer is 3 remainder 4, what is that number?

Answer 1

We know that 5 fits entirely into our number three times, and then there's a remainder of 4.

If 5 fits three times exactly, it means that our number is at least 15 (5x3).

From here, we have a remainder of 4, which leads to 15+4=19