The sum of the non-prime numbers between 30 and 40, non-inclusive, is
Choose one:
A) 202
B) 217
C) 232
D) 247
E) 262
sum of consecutive integers from 31 to 39, inclusive ====&gt; (A1 + An)/2 * # of terms = (31 + 39)/2 * 9 = 35 *9= 
<gadget id="calculator">35 *9</gadget>
<output>315</output>
315   sum of non-prime numbers b/w 30 and 40, non inclusive===&gt; 315 - 68 (i.e., 31 + 37, being the prime #s in the range) =247   Answer: 247
<result>D</result>
The sum of the non-prime numbers between 30 and 40, non-inclusive, is