In a class of 50 students, 40 % are girls. Find the number of girls and number of boys in the class? Choose the correct option:
A) 33
B) 237
C) 36
D) 88
E) 30
Number of girls in the class = 40 % of 50   = 40/100 × 50   = 2000/100= 
<gadget id="calculator">2000/100</gadget>
<output>20</output>
20   Number of boys in the class= Total number of students in the class - Number of girls   = 50 – 20   = 30   Answer:30
<result>E</result>
In a class of 50 students, 40 % are girls. Find the number of girls and number of boys in the class?