Question

The chemicals in my swimming pool use a ratio of 2 tablets of chlorine for every 5 days. Which ratio shows the number of chlorine tablets needed for 20 days?

A) 5 to 20

B) 8 to 20

C) 7 to 20

D) 3 to 20

Answer 1

8 to 20

Answer 2

2:5 so x:20
your multiply for 4 up and dow
2*4:5*4 = 8:20

Answer 3

Thank you your so much of a help