Think you have a sharp mind? Here’s a challenging brain teaser. It’s a test of logical reasoning and pattern recognition. The puzzle presents several equations and asks you to find the missing number. But be careful, many fall into common traps.
Here’s the puzzle:
Wrench + Wrench + Wrench = 15
Wrench + Gear + Gear = 25
Gear – 2 Bolts = 8
Bolt + Wrench × Gear =?
Common mistakes when solving include ignoring the order of operations, making wrong assumptions about object values, and overlooking consistency.
Now, let’s solve it step by step.
First, from Wrench + Wrench + Wrench = 15, since there are three wrenches, we get Wrench = 15 ÷ 3 = 5.
Second, in the equation Wrench + Gear + Gear = 25, substitute Wrench = 5, we have 5 + 2G = 25. Solving for G (Gear), we get 2G = 25 – 5 = 20, so G = 10.
Third, with the equation Gear – 2 Bolts = 8 and Gear = 10, substitute it in to get 10 – 2B = 8. Solving for B (Bolt), we find 2B = 10 – 8 = 2, so B = 1.
Finally, for the last equation Bolt + Wrench × Gear =?, substitute the values we found: 1 + 5 × 10. According to the order of operations (multiplication first), we have 1 + (5 × 10) = 1 + 50 = 51.
The missing number is 51. Try it yourself and see if you can crack it without these hints next time!
