In a class, the number of girls is 20% more than that of the boys. The strength of the class is 66. If 4 more girls are admitted to the class, the ratio of the number of boys to that of the girls is
Choose the correct choice from the following answers:
A) 1:2
B) 3:4
C) 1:4
D) 3:5
E) None
Solution: Girls:boys = 6:5;   Hence, girls = 6*66/11= 
<gadget id="calculator">6*66/11</gadget>
<output>36</output>
36;   Boys= 30;   New ratio, 30:(36+4) = 3:4.   Answer: Option 3:4
<result>B</result>
In a class, the number of girls is 20% more than that of the boys. The strength of the class is 66. If 4 more girls are admitted to the class, the ratio of the number of boys to that of the girls is