The sum of 4 consecutive odd numbers is 160. Find the smallest number. 

Correct option is A

​Given:

The sum of 4 consecutive odd numbers is 160.

​​Solution: 

Let the numbers be:$$x, x+2, x+4, x+6$$
then, 

$$x + (x+2) + (x+4) + (x+6) = 160$$​

​$$4x + 12 = 160 \\ \ \\\ 4x = 148 \\ \ \\ \implies x = 37$$​​