A test consists of 10 different questions. 4 of the questions are on trigonometry and 6 questions
Question:
A test consists of 10 different questions.
4 of the questions are on trigonometry and 6 questions are on algebra.
Students are asked to answer 8 questions.
a. Find the number of ways in which students can select 8 questions if there are no restrictions.
b. Find the number of these selections which contain at least 4 algebra questions.
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Related Book For
Cambridge IGCSE And O Level Additional Mathematics Coursebook
ISBN: 9781108411660
2nd Edition
Authors: Sue Pemberton
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