there is a class of 45 students . 3/5 are the boys ,then how much is the girls?????? can anyone answer this question with calculation..... Share with your friends Share 2 Simya Aravamuthan answered this no. of boys = 3/5 * 45 = 27 no. of girls = 45- 27 = 18 3 View Full Answer Chirag answered this no of girls =3/5*45=3/5*45=3/1*9=27 therefore no of girls =27 -3