Consider the following 8 numbers, where one labelled x is unknown. 40, 32, 17, x, 21, 50, 20, 25

Given that the range of the numbers is 69,

work out 2 values of x.

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on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

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