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The Product Rule for Counting

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Question 74

There are 20 people in a room. Each person shakes each other person's hand once.

Work out the number handshakes that take place.

[2]

Hence, work out the number of handshakes that take place if there are 21 people in the room.

[2]

Markscheme

The Product Rule for Counting Questions

GCSE
Maths
The Product Rule for Counting

181 exam-style questions on CCEA 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

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The Product Rule for Counting

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Question 74

There are 20 people in a room. Each person shakes each other person's hand once.

Work out the number handshakes that take place.

[2]

Hence, work out the number of handshakes that take place if there are 21 people in the room.

[2]

Markscheme

The Product Rule for Counting Questions

GCSE
Maths
The Product Rule for Counting

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