Igloo ... guest room ! ? ! ... ( 11 - 12 years old )
Do you know in which igloo
Alluaq can sleep in ? ? ?
No hotel near the North Pole . . .
Alluaq can sleep in igloo number 2 !
It was built by his friend.
But where is it ? . . . There are no numbers !!!
On the snow he reads this message :
c + c = a b x c = b
c x c = c b + b = b
a x b = b a + b = a
a x c = a b x b = b
Replace letters with
numbers 0, 1 ou 2 !
"Good night"
Signed : Your friend ! ! !