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The Product Rule for Counting

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Question 33

There are 14 boys and $k\,$ girls in a choir. One boy and one girl will be selected to sing a duet. Taylor says there are $n\,$ different ways of choosing a boy and a girl.

Find an expression for $n\,$ in terms of $k$ . You must show your working.

[2]

Markscheme

The Product Rule for Counting Questions

GCSE
Maths
The Product Rule for Counting

181 exam-style questions on OCR GCSE Maths The Product Rule for Counting. Each one has a worked solution and a mark scheme showing where the marks go.

The Product Rule for Counting

Question bank

The Product Rule for Counting

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53

Question 33

There are 14 boys and $k\,$ girls in a choir. One boy and one girl will be selected to sing a duet. Taylor says there are $n\,$ different ways of choosing a boy and a girl.

Find an expression for $n\,$ in terms of $k$ . You must show your working.

[2]

Markscheme

The Product Rule for Counting Questions

GCSE
Maths
The Product Rule for Counting

181 exam-style questions on OCR GCSE Maths The Product Rule for Counting. Each one has a worked solution and a mark scheme showing where the marks go.