Yesterday afternoon, the principal vanished right before an important school budget meeting. Security cameras stopped working at exactly 3:42 PM. Teachers discovered suspicious clues hidden around campus, but nobody has been able to solve the case.
Your mission: Solve each math clue, unlock the evidence, and reveal the final office code before the case goes cold.
Student Information
Enter your information before starting. Your teacher will receive an email when you solve the final code.
Puzzle 1
Puzzle 2
Puzzle 3
Puzzle 4
Final Code
Puzzle 1: Locker Investigation
A suspicious locker was found partially open near the main office. Solve the proportion problems to reveal the locker code.
Problem 1
If 5 notebooks cost $12.50, how much would 14 notebooks cost?
Problem 2
A school map uses a scale where 2 inches represents 16 feet. If a hallway measures 48 feet long, how many inches would it be on the map?
Hint: Find $35 for the notebooks. Then find the map length and multiply that answer by 10.
Puzzle 2: Cafeteria Receipt
Investigators found a cafeteria receipt from the day of the disappearance. Solve the percent problems to unlock the next clue.
Problem 1
A lunch order originally cost $48. A 25% discount was applied. What was the final cost?
Problem 2
Sales tax is 8%. How much tax would be added to a $75 order?
Hint: Find the discounted price first. Then find 8% of 75. Add both answers.
Puzzle 3: Security Camera Coordinates
The school security system recorded strange room coordinates before shutting down. Solve the equations to reveal the hidden room number.
Equation 1
3x + 9 = 36
Equation 2
5y − 10 = 40
Hint: x = 9 and y = 10. Multiply them together.
Puzzle 4: Teacher Lounge Cipher
A coded note was found in the teacher lounge. Use the number-to-letter chart to decode the message.
1=A
2=B
3=C
4=D
5=E
6=F
7=G
8=H
9=I
10=J
11=K
12=L
13=M
14=N
15=O
16=P
17=Q
18=R
19=S
20=T
21=U
22=V
23=W
24=X
25=Y
26=Z
Coded Message
3 – 8 – 5 – 3 – 11
18 – 15 – 15 – 13
2 – 14
Hint: The first word is CHECK. The final clue points to Building N.
Final Challenge: Unlock the Office
Combine the numbers from the investigation in this order:
Locker Code
Receipt Code
Room Number
Hint: The code is made from Puzzle 1, Puzzle 2, and Puzzle 3. No spaces.
Case Solved!
The principal was hidden in Room 90, Building N. The suspicious clues were left by the Budget Bandit, who wanted to delay the school budget meeting.
Your team cracked the code and solved the mystery.
