Foundation January 2019 Paper 1R Q9

EdexcelCurrent spec5 marksSequences

9 Here is a sequence of patterns made from white counters and black counters.

Pattern number 1: white, black, white. Pattern number 2: black, white, black, white, black. Pattern number 3: white, black, white, black, white, black, white
(a) In the space below, complete Pattern number 4
Seven counters drawn: white, black, white, black, white, black, white
(1)
(b) Find the total number of counters in Pattern number 6 (1)
(c) Work out the number of black counters in Pattern number 14 (1)
(d) Work out the total number of counters in Pattern number 50 (2)
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