Midpoint= in the middle
Midpoint is D
We have to set up 2 equations:
A) x + y = 10 liters
B) .05x + .25y = 10 * .10
Multiply equation B) by -4
B) -.2x - y = -4 then add to equation A)
A) x + y = 10 liters
.8x = 6 liters
x = 7.5 liters of 5%
y = 2.5 liters of 25%
So probability is (desired outcomes)/(total possitlble outcomes)
desired is 1 since 3 appaears once on the cube
6 total possible
so probaity of rolling a3 is 1/6
100 times
100 times 1/6=100/6=16 and 2/3 times
round up
17 times
Link to the question hope this helps