Percent problems

1003055509

Level: 
A
Mr. Nowak deposited 2000 zlotys into his savings account at an annual interest rate of 4.5%, compounded annually. At the end of the year, the 19% tax of the interest was deducted. What was the amount of the money deducted?
17.10 zlotys
19 zlotys
38 zlotys
85.50 zlotys

1003055508

Level: 
A
In a chess tournament 70% of all participants were boys. Girls were 20% of the number of boys. Other participants of the event were coaches and judges. Find the percentage of girls with the reference to all the participants of the tournament.
14% of all participants
30% of all participants
50% of all participants
Not enough information to find a solution.