Question 549589
Let's let n be the smallest number, this means that the other two numbers are n+2 and n+4 (since odd consecutve numbers are numbers , eg. 1 3 5)


So we have 
{{{n+n+2+n+4=75}}}
{{{3n+6=75}}}
{{{3n+6-6=75-6}}}
{{{3n=69}}}
{{{n=23}}}


So our numbers are 23, 25 and 27.   

Hopefully this helps, 
Have a good one!