Join the Car Talk Community!

Equate This, Part Deux

The Puzzler


RAY: This was from my '4s' series and it was sent in by Elizabeth McCarahan.

Take the number 4 and use it five times to come up with the number 54. You can use any of the math operators you want: addition, subtraction, decimals, fractions, square roots, factorial, any of that stuff. You can't use cube roots because you'd be using the number 3. You can only use the number 4. What's the equation?

Think you know? Drop Ray a note!

[ Car Talk Puzzler ]

Support for Car Talk is provided by:

Donate Your Car,
Support Your NPR Station

...and get a tax break!

Get Started

Find a Mechanic


Go



Submit