Altogether i have 10 bags of sweets. the mean number of sweets in the bag is 40

Answer the question : I don't get what the question is suppose to be

Step-by-step explanation:

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not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this