The sum of the non-prime numbers between 50 and 60, non-inclusive, is
Choose the correct choice from the following choices:  A) 263  B) 293  C) 323  D) 353  E) 383
sum of consecutive integers from 51 to 59, inclusive ====&gt; (A1 + An)/2 * # of terms = (51 + 59)/2 * 9 = 55 *9= 
<gadget id="calculator">55 *9</gadget>
<output>495</output>
495   sum of non-prime numbers b/w 50 and 60, non inclusive===&gt; 495 - 112 (i.e., 53 + 59, being the prime #s in the range) =383   Answer: 383
<result>E</result>
The sum of the non-prime numbers between 50 and 60, non-inclusive, is