In an exam 80% of the boys and 40% of the girls passed. The number of girls who passed is 120, which is 2/3rd of the number of boys who failed. What is the total number of students who appeared for the exam? Select.
A) 1200 B) 380 C) 3800 D) 2180 E) 3180
Let the Number of boys = x , Number of girls =y   40y/100 =120   y = 300   120= 2/3* 20x/100 = 2x/15   x = 900   Total = x+y = 300+900= 
<gadget id="calculator">300+900</gadget>
<output>1_200</output>
1200   1200NSWER:1200
<result>A</result>
In an exam 80% of the boys and 40% of the girls passed. The number of girls who passed is 120, which is 2/3rd of the number of boys who failed. What is the total number of students who appeared for the exam?