Let's say he has 1 kg of each
2.25/kg and 3.75/kg
add together and divide by 2 to get average
6/2=3
so it must be a one to one ratio
25 kg/2=12.5 kg of each
12.5 of each brand
Sorry but where is the table my screen does not show it
The probability that she makes an A in neither is 0.10