Dear Student,Number of boys =115Number of boysNumber of girls=53⇒115Number of girls=53⇒Number of girls=115×35=69Regards

Solve this:

D e a r S t u d e n t, N u m b e r o f b o y s = 115 \frac{N u m b e r o f b o y s}{N u m b e r o f g i r l s} = \frac{5}{3} \Rightarrow \frac{115}{N u m b e r o f g i r l s} = \frac{5}{3} \Rightarrow N u m b e r o f g i r l s = \frac{115 \times 3}{5} = 69 R e g a r d s