Review Comments of Math Practice Questions 25/05/2025

Here's the scoring and feedback for each question:

Question 1:

• Final Answer: Correct (6 × 15) [0.5/0.5]
• Solving Steps: Correct setup and solution [0.5/0.5]
• Feedback: Perfect solution with clear steps.

Question 2:

• Final Answer: Correct (Team A:11, Team B:8) [0.5/0.5]
• Solving Steps: Correct but has redundant "if x=8" line [0.4/0.5]
• Feedback: Good solution, but don't need to test x=8 when you've already solved it algebraically.

Question 3:

• Final Answer: Correct (Plato:8, Socrates:13, Aristotle:16) [0.5/0.5]
• Solving Steps: Correct setup and solution [0.5/0.5]
• Feedback: Excellent work setting up and solving the equations.

Question 4:

• Final Answer: Correct (3 hours) [0.5/0.5]
• Solving Steps: Correct but could show more steps [0.4/0.5]
• Feedback: Correct but could show 8x=24 → x=24/8 → x=3 more clearly.

Question 5:

• Final Answer: Correct (20 adult, 30 child) [0.5/0.5]
• Solving Steps: Unconventional but valid method [0.4/0.5]
• Feedback: Correct solution, though standard substitution/elimination might be clearer.

Question 6:

• Final Answer: Correct (4 students) [0.5/0.5]
• Solving Steps: Correct solution [0.5/0.5]
• Feedback: Perfect setup and solution.

Question 7:

• Final Answer: Correct (32 blocks) [0.5/0.5]
• Solving Steps: Correct logic but could show equation [0.4/0.5]
• Feedback: Correct but could write: (x/2)+4=20 → x/2=16 → x=32.

Question 8:

• Final Answer: Correct (4 seconds) [0.5/0.5]
• Solving Steps: Correct solution [0.5/0.5]
• Feedback: Excellent factoring and solution.

Question 9:

• Final Answer: Correct (Socrates:12, Diogenes:6) [0.5/0.5]
• Solving Steps: Correct but could show equation [0.4/0.5]
• Feedback: Correct but could write: Let D=x, S=2x → x+2x=18 → 3x=18 → x=6.

Question 10:

• Final Answer: Correct (4 swords, 2 shields) [0.5/0.5]
• Solving Steps: Correct solution [0.5/0.5]
• Feedback: Perfect setup and solution of simultaneous equations.

Overall Score:9.7