Answer :
Use the proportions property:
775 times ---------- 180 sec
x ---------- 1 sec
[tex]x=\frac{775}{180}=4.3 \ times \ per \ sec[/tex]
775 times ---------- 180 sec
x ---------- 1 sec
[tex]x=\frac{775}{180}=4.3 \ times \ per \ sec[/tex]