Question 247337
<pre><font size = 4 color = "indigo"><b>
Since the number is to be divisible by both 2 and 5 it is 
divisible by 10. Therefore it ends in a 0.  So the sum of 
its digits are just the sum of the first two digits. Since 
it has to be less than 300, the first digit can only be 
1 or 2. We just need to find two digits whose sum is 7, with
the first one 1 or 2.  1 and 6 have sum 7, and 160 is not 
divisible by 3.

So one answer is 160.

But also 2 and 5 have sum 7, and 250 is not divisible by 3. 

So the other answer is 250. 

They didn't need to tell us it isn't divisible by 3, because
it couldn't be anyway.

Edwin</pre>