1. ## Magic Star

I've been trying to work this out for ages but it's driving me nuts!

Any idea what belongs where the question mark is and why?

2. ## Re: Magic Star

try again lol

3. ## Re: Magic Star

If ? = 20, some consistency is found in the star. Notice:

$\displaystyle 112\times 5 = 560$

$\displaystyle 35\times 16 = 560$

$\displaystyle 28\times ? = 560$

Also:

$\displaystyle \frac{112}{16}\times 5 = 35$

and

$\displaystyle \frac{112}{35}\times 5 = 16$

Applying a similar relation to 28 and ?

If ? = 20 then:

$\displaystyle \frac{112}{28}\times 5 = 20$

and

$\displaystyle \frac{112}{20}\times 5 = 28$

It seems that 35 relates to 16 and 28 relates to ? while 112 and 5 relate to everything.

4. ## Re: Magic Star

Found this one

5. ## Re: Magic Star

5 * 112 = 560

35 * 16 = 560

28 * 20 = 560

so ? = 20

6. ## Re: Magic Star

This is really fun stuff !
Nice post . keep up the good work!
The problem are so fun

italian coffee We are not a warehouse with all sort of coffees, teas and cheaply produced machines italia coffee