Eva’s grade was in the 80th percentile out of 80 grades in her class. In another class of 70 students there were 30 grades higher than Eva’s. If nobody had Eva’s grade, then Eva was what percentile of the two classes combined?	Choose one
A) 84	B) 80	C) 74	D) 69	E) 65
Being in 80% percentile out of 80 grades means Eva was 65th (from the least grade) in the class (as long as nobody had Eva's grades), she outscored 64.   In another class her grade would rank her 41 (from the least grade out of 71, 70+Eva), 40 had the grades lower than Eva.   So in combined classes she outscored  64+40= 
<gadget id="calculator"> 64+40</gadget>
<output>104</output>
104. There are 150 students 104/150=0.69   Answer: D (69%)   Generally being in x% means that x% has the grades less than you.   Eva in 80% --&gt; she outscored 890% of of 80=64 (Eva is 65th).   Of the 70 grades from another class, 30 were higher than Eva's, and the rest were lower --&gt; rest is 40, hence Eva outscored 40.   So out of total  80+70= 
<gadget id="calculator"> 80+70</gadget>
<output>150</output>
150, Eva outscored 64+40= 
<gadget id="calculator">64+40</gadget>
<output>104</output>
104. Hence she is in 104/150=69%.   Answer: 65
<result>E</result>
Eva’s grade was in the 80th percentile out of 80 grades in her class. In another class of 70 students there were 30 grades higher than Eva’s. If nobody had Eva’s grade, then Eva was what percentile of the two classes combined?