The first term of an arithmetic progression is 15 and the last term is 27. The sum

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The first term of an arithmetic progression is 15 and the last term is 27. The sum of the first five terms is 79. Find the number of terms in this progression.

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Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

ISBN: 9781108407144

1st Edition

Authors: Sue Pemberton, Julian Gilbey

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Question Posted: Mar 10, 2023 06:35 AM

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The first term of an arithmetic progression is 15 and the last term is 27. The sum

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Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

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