On rainy mornings, Mo drinks exactly N cups of hot chocolate (assume that N is an integer). On mornings that are not rainy, Mo drinks exactly 2 cups of tea. Last week Mo drank a total of 16 cups of tea and hot chocolate together. If during that week Mo drank 4 more tea cups than hot chocolate cups, then how many rainy days were there last week? Choose the correct choice from the following options: A) 6 B) 3 C) 4 D) 5 E) 2
T= the number of cups of tea   C= the number of cups of hot chocolate   T+C = 16 T-C=4 -&gt; T= 10. C=6.   Mo drinks 5 cups of tea a day then number of days that are not rainy = 10/2= 
<gadget id="calculator">10/2</gadget>
<output>5</output>
5   So number of rainy days= 7-5= 
<gadget id="calculator">7-5</gadget>
<output>2</output>
2   2 is the answer.
<result>E</result>
On rainy mornings, Mo drinks exactly N cups of hot chocolate (assume that N is an integer). On mornings that are not rainy, Mo drinks exactly 2 cups of tea. Last week Mo drank a total of 16 cups of tea and hot chocolate together. If during that week Mo drank 4 more tea cups than hot chocolate cups, then how many rainy days were there last week?