SOLUTION: 20 litres of milk are drawn from a churn containing 80 litres. If each of these measurements is liable to a 10% error, calculate the limits within which the remaining quantity lies

Question 1198850: 20 litres of milk are drawn from a churn containing 80 litres. If each of these measurements is liable to a 10% error, calculate the limits within which the remaining quantity lies.
Answer by ikleyn(52775) (Show Source): You can put this solution on YOUR website!
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The lover limit is 80*(1-0.1) - 20*(1+0.1).

The upper limit is 80*(1+0.1) - 20*(1-0.1).

To get the numbers, use your calculator.

The formulas itself are self-explanatory.

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