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The Table presents the amount of milk (in litres) sold by two milkmen in eight days. Days Milkman 1 Milkman 2 1 28 31 2 34 32 3 38 43 4 37 41 5 53 49 6 58 59 7 63 62 8 67 69   What is the difference between the average milk sold per day by Milkman 1 and the average milk sold by Milkman 2 per day?

The Table presents the amount of milk (in litres) sold by two milkmen in eight days. Days Milkman 1 Milkman 2 1 28 31 2 34 32 3 38 43 4 37 41 5 53 49 6 58 59 7 63 62 8 67 69   What is the difference between the average milk sold per day by Milkman 1 and the average milk sold by Milkman 2 per day? Correct Answer 1 litres

Average = Total amount of milk/number of days

Total milk sold per day by Milkman 1 = 28 + 34 + 38 + 37 + 53 + 58 + 63 + 67 = 378 litres

Hence, average milk sold per day by Milkman 1 = 378/8 = 47.25 litres

Total milk sold per day by Milkman 2 = 31 + 32 + 43 + 41 + 49 + 59 + 62 + 69 = 386 litres

Hence, average milk sold per day by Milkman 2 = 386/8 = 48.25 litres

Now, required difference = 48.25 – 47.25 = 1 litre

∴ The difference between the average milk sold per day by Milkman 1 and the average milk sold by Milkman 2 per day is 1 litre.

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