ratio of girl and boys in class is 5:6.if 20 girl leave the class and ratio become 2:3.calculate the no. of boys?
Choose the most appropriate option:
A) 100 B) 120 C) 80 D) 90 E) none of the above
girl 5x and boys 6x   5x-20/6x=2/3,15x-60=12x,3x=60,x=20   boys=6x=120   answer 120
<result>B</result>
ratio of girl and boys in class is 5:6.if 20 girl leave the class and ratio become 2:3.calculate the no. of boys?