Mathematics (AS & A Level) · Oct / Nov 2022 · Paper 11 · Question 7
9709
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The question as text
A tool for putting fence posts into the ground is called a ‘post-rammer’. The distances in millimetres that the post sinks into the ground on each impact of the post-rammer follow a geometric progression. The first three impacts cause the post to sink into the ground by 50mm, 40mm and 32mm respectively.
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7(a)[3]
7(b)[2]
7(c)[2]
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