Answer:
B=10
F=6
Step-by-step explanation:
100%......360
x%............225
x=225*100/360=62.5
so B=62.5% , F=100-62.5=37.5%
37.5/100* n=62.5/100* n - 4
37.5 n/100=(62.5n-400)/100
*100 *100
37.5n=62.5n-400
62.5n-37.5n=400
25n=400
n=400/25
n=16
B=62.5*16/100=1000/100=10
