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Ten RED socks and ten BLUE socks are all mixed up

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Presentation on theme: "Ten RED socks and ten BLUE socks are all mixed up"— Presentation transcript:

1 Ten RED socks and ten BLUE socks are all mixed up
in a dresser drawer. The socks are EXACTLY the same except for the colour. The room is in complete darkness and you want two matching socks. What is the smallest number of socks you need to remove from the drawer in order to be certain that you have a matching pair?

2 I originally had £100 in the bank. Then I made six withdrawals.
These withdrawals add up to £100, but according to my records there was only £99 in the Bank to draw out. What happened to the £1 ? Withdrawals Amount left £50 £25 £10 £15 £8 £7 £5 £2 £100 £99

3 Move 1 coin so that you have 2 straight rows,
each row containing 4 coins. 1p 1p 1p 1p 1p 1p

4 Can you circle six digits so that the total is 21 ?

5 1 2 3 4 Each book is 5 centimetres wide. This includes the covers,
which are ⅛ of a centimetre thick. If a bookworm starts on page 1 of Book 1 and eats his way through to the last page of Book 4. How far has the bookworm travelled ? 1 2 3 4

6 A basketball weighs 600g plus half it weight.
What is the weight of the basketball ?

7 Which deal should you take and why ?
Suppose you take a new job and the boss offers you a choice between : A - £4000 for your first year of work, and a raise of £800 for each year thereafter. B - £2000 for your first 6months of work, and a raise of £200 every six months thereafter. Which deal should you take and why ?

8 What is the basis for the order in which these
ten digits have been arranged ? 8 – 5 – 4 – 9 – 1 – 7 – 6 – 3 – 2 - 0


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