Others Maths Puzzle

ITS WASTE TO SUBMIT EXPLANATION

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Others Other Question

Every day in his business, a merchant had to weigh amounts from one pound to one hundred and twenty-one pounds, to the nearest pound. To do this, what is the minimum number of weights he needs and how heavy should each weight be? ITS WASTE TO SUBMIT EXPLANATION ........I HAVE SOLVAD UP TO 40 PROBLEMS STILL IT IS JUST 1......