(a)[3]
Calculate the number of arrangements when the first and last cans in the row are the same drink type.
(b)[5]
Calculate the number of arrangements if the 3 cans of cola are kept together and the 2 cans of green tea are not kept together.
Mathematics 9709 · AS & A Level · Sampling and estimation
Sampling and estimation — practice question
Three identical cans of cola, 2 identical cans of green tea, and 2 identical cans of orange juice are placed in a line.
Worked solution & mark scheme
This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “For each of the three possible ends, for example cola, green tea, and orange juice” …
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