How many positive integers less than 350 are there such that they are multiples of 17 or multiples of 18?	Choose the correct choice:  A) 36  B) 37  C) 38  D) 39  E) 40
350/17 = 20 (plus remainder) so there are 20 multiples of 17   350/18 = 19 (plus remainder) so there are 19 multiples of 18   We need to subtract 1 because 17*18 is a multiple of both so it was counted twice.   The total is  20+19-1= 
<gadget id="calculator"> 20+19-1</gadget>
<output>38</output>
38   The answer is 38.
<result>C</result>
How many positive integers less than 350 are there such that they are multiples of 17 or multiples of 18?