For which of the following values of n is (300+n)/n NOT an integer?  Choose the correct choice from the following options.
A) 1 B) 2 C) 3 D) 4 E) 7
Solution:   This problem is easiest solved by plugging in each answer choice.   A) (300 + 1)/1 = 301/1= 
<gadget id="calculator">301/1</gadget>
<output>301</output>
301   Answer choice A yields an integer.   B) (300 + 2)/2= 302/2= 
<gadget id="calculator">302/2</gadget>
<output>151</output>
151   Answer choice B yields an integer.   C) (300 + 3)/3= 303/3= 
<gadget id="calculator">303/3</gadget>
<output>101</output>
101   Answer choice C yields an integer.   D) (300 + 4)/4= 304/4= 
<gadget id="calculator">304/4</gadget>
<output>76</output>
76   Answer choice D yields an integer.   E) (300 + 7)/7= 307/7 = 43, remainder 6   Answer choice E DOES NOT yield an integer.   Thus, the correct answer is answer choice 7.
<result>E</result>
For which of the following values of n is (300+n)/n NOT an integer?