Answer:
73.90%
Step-by-step explanation:
Let Event D=Defective, D' = Non Defective
Let Event N=New Machine, N' = Old Machine
From the given information:

We are required to calculate the probability that a widget was manufactured by the new machine given that it is non defective.
i.e. 

Using Baye's Law of conditional Probability

Therefore given that a selected widget is non-defective, the probability that it was manufactured by the new machine is 73.9%.
40 people
wheat flour per person-2 kg
corn flour per person-3 kg
rice per person-4 kg
-5^11 you want to subtract -6 from 5 which become 5+6.
Answer:
Step-by-step explanation: