Answer:
False
Step-by-step explanation:
girls : boys : total
5 : 6 :11
Multiply each term by 2
10: 12 :22
Ratio of girls to boys
10:12
Divide by 2
5:6
The ratio of girls to boys is still 5:6 but the total students is 22
It's the same amount each month, for a year. So:
total money ÷ times money was taken out= how much has been taken out.
$600÷12=50
100% - 81% = 19%
19% did not pass.