A test consists of 30 questions. Each answer is either correct or incorrect. Find the number of

Question:

A test consists of 30 questions.

Each answer is either correct or incorrect.

Find the number of different ways in which it is possible to answer

a. Exactly 10 questions correctly.

b. Exactly 25 questions correctly.

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Cambridge IGCSE And O Level Additional Mathematics Coursebook

ISBN: 9781108411660

2nd Edition

Authors: Sue Pemberton

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Question Posted: Aug 30, 2021 12:32 AM

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A test consists of 30 questions. Each answer is either correct or incorrect. Find the number of

Question:

Step by Step Answer:

a The number of ways in which it is possible to answer exactly 10 questions correct...View the full answer

Cambridge IGCSE And O Level Additional Mathematics Coursebook

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