Percent problems

2010008304

Level: 
A
At the beginning of the therapy, three monitored patients were of the same weight. Their weights were changing as follows: (a) Patient A gained 6% of his weight and then his weight did not change. (b) Patient B lost 2% of his weight first, but later he gained 8% of his weight. (c) Patient C gained 2% of his weight and later he gained another 4% of his weight. Which patient has the lowest weight after the therapy?
Patient B
Patient A
Patient C
After described weight changes everyone will weigh the same.

2010018205

Level: 
A
The number of traffic accidents in the monitored cities changed year on year. It increased by 20% in city A and decreased by 1% in city B. Decide which of the following statements is correct: X: The same number of accidents occurred in city A as in city B the last year.Y: There were more accidents in city A than in city B the last year.Z: There have been fewer accidents in city B than in city A this year.
The correctness of any of the above statements cannot be verified from the given data.
Only statement X is true.
Only statement Y is true.
Only statement Z is true.

1003066906

Level: 
B
The results of a survey considering the support for political parties Y and Z are presented in the table below. a) How many percentage points have the support for party Y increased? b) How much has the percentage of people supporting party Z decreased? FebruaryMarchY16%20%Z10%8%
a) by 4 percentage points, b) by 20%
a) by 25 percentage points, b) by 2%
a) by 25 percentage points, b) by 20%
a) by 4 percentage points, b) by 2%

1003066907

Level: 
B
The results of a survey considering the support for political parties Y and Z are presented in the table below. a) How many percentage points have the support for party Z decreased? b) How much has the percentage of people supporting party Y increased? FebruaryMarchY16%20%Z10%8%
a) by 2 percentage points, b) by 25%
a) by 20 percentage points, b) by 4%
a) by 20 percentage points, b) by 25%
a) by 2 percentage points, b) by 4%