Im assuming its just a regular number cube with 6 numbers
there are only 2 odd numbers above 1 ( 3 and 5)
so the ratio is 2/6
you want to know how manny times (x) will you roll those numbers out of 78 roll
the ratio is x/78
multiply
(2/6) = (x/78)
cross multply to give you 6x= 156 and divide by 6
<span>to give you x = 26
</span>
Tape dispenser the others are too heavy
2/5 ...........................
first you put 18/y=2
you multiply by 18 to get y=36
your answer is 36, y=36
