# Other Topics Puzzle – Math Challenge 101

This is another perfect math puzzle that can be solved without even using a pen and paper! Paying attention to the details is the key to solving this fascinating Math puzzle!

### The Absolute Best Book** to ****challenge your Smart Student!**

The correct answer is 30.

First, notice that the clocks show different times. The first two clocks show 9 and the third one shows 3. Then: \(9+9+3=21\)

The three calculators sum up to 30. So, each one represents number 10.

The third equation, each lamp represents number 5. \((5+5+5=15)\)

Now, let’s solve the last equation. The clock represents number 9. This calculator is different from the calculators in the second equation. The numbers in the previous calculators are 1, 2, 3, and 4. We know that the calculators represent number 10. So, \(1+2+3+4=10\)

The calculator on the last equation had numbers 1, 2, 2, and 4. So, the calculator represents number 9: \(1+2+2+4=9\)

Now, notice that the lamps on the last equation are different from the lamp in the third equation. That lamp has 5 bars on it, but these lamps have 4 bars on them. The lamp on the third equation represents number 15. So, 5 bars on the lamp represent 15. Then, each of the lamps with 4 bars represent \(12 \ (4×3=12)\).

Now, let’s solve the last equation.

\(9+9+12=30\)

## Related to This Article

### More math articles

- The Circle’s Anatomy: A Closer Look at the Parts of a Circle
- How to Find Mean, Median, Mode, and Range of the Given Data? (+FREE Worksheet!)
- 7th Grade North Carolina End-of-Grade Math Worksheets: FREE & Printable
- Ratio, Proportion and Percentages Puzzle – Critical Thinking 7
- ISEE Math- Test Day Tips
- Top 10 Tips to Retake GED Math Test
- A Comprehensive Collection of FREE ACT Math Practice Tests
- 8th Grade PARCC Math Practice Test Questions
- How to Perform Vector Addition and Subtraction
- Geometry Puzzle – Challenge 59

## What people say about "Other Topics Puzzle – Math Challenge 101 - Effortless Math: We Help Students Learn to LOVE Mathematics"?

No one replied yet.