Q. In a recent basketball tournament, Team X scored an average of 80 points per game over 5 games. If they scored 100 points in one game, what was their average score in the other four games?
A.
70
B.
75
C.
80
D.
85
Solution
The total points scored in 5 games is 80 * 5 = 400. If one game was 100 points, the remaining 4 games scored 400 - 100 = 300 points, giving an average of 300/4 = 75.
Q. In a recent chess tournament, each player played against every other player exactly once. If there were 10 players in total, how many games were played? (2023)
A.
45
B.
90
C.
100
D.
50
Solution
The number of games played in a round-robin tournament is given by the formula n(n-1)/2, where n is the number of players. Here, n = 10, so the number of games is 10(10-1)/2 = 45.
Q. In a recent chess tournament, the final match ended in a draw. If each player had won 3 matches and lost 2 before the final, how many matches did they play in total?
A.
5
B.
6
C.
7
D.
8
Solution
Each player played 5 matches before the final, and the final match adds one more, totaling 6 matches.
Q. In a recent climate change agreement, 12 countries committed to reducing emissions by 20%. If the total emissions are 1 billion tons, how much will be reduced?
A.
100 million tons
B.
200 million tons
C.
300 million tons
D.
400 million tons
Solution
Reduction in emissions = 20% of 1 billion tons = 0.2 * 1 billion = 200 million tons.
Q. In a recent international summit, 25 countries participated. If each country sent 3 representatives, how many representatives were there in total? (2022)
A.
50
B.
60
C.
75
D.
80
Solution
Total representatives = 25 countries * 3 representatives = 75 representatives.
Q. In a recent study, researchers found that students who engage in group study sessions perform better than those who study alone. Which of the following can be inferred from this study?
A.
Group study is the only effective way to learn.
B.
Studying alone is less effective than group study.
C.
All students prefer group study over studying alone.
D.
Group study sessions are always more enjoyable.
Solution
The study indicates a comparison between group study and studying alone, suggesting that group study is more effective.
Correct Answer:
B
— Studying alone is less effective than group study.
Q. In a recent study, researchers found that students who engage in regular physical activity tend to perform better academically. Which of the following can be inferred from this study?
A.
Physical activity directly causes better academic performance.
B.
Students who perform well academically are more likely to engage in physical activity.
C.
There is a correlation between physical activity and academic performance.
D.
All students should engage in physical activity to improve their grades.
Solution
The study indicates a correlation, but does not establish causation.
Correct Answer:
C
— There is a correlation between physical activity and academic performance.
Q. In a recent study, researchers found that students who engage in regular physical activity perform better academically. Which of the following can be inferred from this study?
A.
Physical activity directly causes better academic performance.
B.
All students should engage in physical activity to improve grades.
C.
There is a correlation between physical activity and academic performance.
D.
Only students who are physically active can excel academically.
Solution
The study indicates a correlation, but does not establish direct causation.
Correct Answer:
C
— There is a correlation between physical activity and academic performance.
Q. In a recent study, researchers found that students who study in groups perform better than those who study alone. Which of the following can be inferred from this study?
A.
Group study is always more effective than individual study.
B.
Students who study alone are less intelligent.
C.
Collaboration enhances learning outcomes.
D.
All students prefer group study over individual study.
Solution
The study indicates that collaboration enhances learning outcomes, but it does not claim that group study is always better or that students who study alone are less intelligent.
Correct Answer:
C
— Collaboration enhances learning outcomes.
Q. In a recent study, researchers found that students who study in groups tend to perform better than those who study alone. Which of the following can be inferred from this study?
A.
Group study is the only effective way to learn.
B.
Studying alone is less effective than studying in groups.
C.
All students prefer group study over studying alone.
D.
Performance is not affected by study methods.
Solution
The study indicates a correlation between group study and better performance, suggesting that group study is more effective.
Correct Answer:
B
— Studying alone is less effective than studying in groups.
Q. In a recent tennis tournament, the top seed was eliminated in the quarter-finals. What does this imply about the tournament's competitiveness?
A.
The tournament was predictable.
B.
The lower-seeded players were exceptionally skilled.
C.
The top seed was not in form.
D.
All of the above.
Solution
The elimination of the top seed suggests a competitive tournament where lower-seeded players performed well and the top seed may not have played at their best.
Q. In a recent UN report, it was stated that 25% of the world's population lives in countries that are members of the UN. If the world population is approximately 8 billion, how many people live in UN member countries?
