The ratio of number of boys and girls in a school is 2:5. If there are 420 students in the school, find the number of girls in the school?	Answers
A) 150 B) 250 C) 300 D) 370 E) 280
Let the number of boys and girls be 2x and 5x   Total students = 420   Number of girls in the school = 5*420/7= 
<gadget id="calculator">5*420/7</gadget>
<output>300</output>
300   Answer is 300
<result>C</result>
The ratio of number of boys and girls in a school is 2:5. If there are 420 students in the school, find the number of girls in the school?