Question

What is the ratio of odd toeven digits in thefollowing number?7,248,531

Answer 1

Given the number:

$7,248,531$

notice that the even and odd digits that are in this number are:

$\begin{gathered} odd\colon7,5,3,1 \\ \text{even:}2,4,8 \end{gathered}$

there are 4 odd digits and 3 even digits, then the ratio of odd to even is:

$\text{odd to even=}\frac{4}{3}=4\colon3$