21. A man is 25 years older than his son. In 5 years, the man will be four times as old as his son. How old is the son now?
A) 5
B) 10
C) 15
D) 20
The correct answer is: C
22. If all doctors are surgeons, and some surgeons are nurses, which of the following is true?
A) All doctors are nurses.
B) Some doctors are nurses.
C) No doctors are nurses.
D) All nurses are surgeons
The correct answer is: B
23. In a class, there are 10 boys and 20 girls. What is the ratio of boys to girls in the class?
A) 1:2
B) 1:3
C) 2:3
D) 1:5
The correct answer is: A
24. If in a race, John finishes 3rd, and Mike finishes ahead of John but behind Richard, what position does Richard finish in?
A) 1st
B) 2nd
C) 4th
D) 5th
The correct answer is: A
25.A clock shows the time as 6:00. What is the angle between the hour hand and the minute hand?
A) 0 degrees
B) 90 degrees
C) 180 degrees
D) 45 degrees
The correct answer is: C
