A.30
b45
C.60
Cao 75
Answer a
10 bag of wheat is calculated as per bag 150 kg. The number of kilograms exceeded is positive, and the number of kilograms insufficient is recorded.
Negative numbers, respectively: -6, -3,-1, -2, +7, +3, +4, -3, -2,+1, compared with the standard mass,
How many kilograms is this 10 bag of wheat over or under? What is the total mass of 10 bag of wheat? The plane of each bag of wheat
How many kilograms is the average mass?
answer
149.8