W2 TS T3 W2 CLASSWORK

The following figures illustrate the change that the introduction of the CD in 1985 had on the recorded-music market. Total annual sales of all types of recording in 1984 were 220 million and in 1994 they were 420 million.

1984: 220 million. a) cassettes 20%, b) Vinyl singles 45%, c) Vinyl Lps 35%

1994 420 million. a) cassettes 30%,

b) Vinyl Lps 10%, c) Cds 35% d) Vinyl singles 25%.

What, approximately, happened to the actual annual sales of VINYL SINGLES between 1984 and 1994?

• They fell by 14 million.

• They fell by 6 million

• They rose by 6million.

• They rose by 14 million

The table below shows the finishing positions in the Oxford School league. The five teams play each other once each. Three points are awarded for a win and one for each team in a drawn match. No Points awarded for a loss.

Team Points

United 8

Arsenal 7

Hotspurs 5

Wanderers 4

Crystal Palace 2

How many of the games were drawn?

• 6

• 5

• 4

• 3

A department store is having a sale. The advertising for the sale is shown below:

If you buy three items, you get the least expensive free [option 1]

30% off if the marked prices total more than $100. and the discount also applies.[ option 2]

Suppose I buy three items at marked prices of $50, $40 and $30. Which is the best option and by how much?

• option 1 30$

• option 2 36$

• option 2 $66

• option 2 $63

Sylvia Okumbe is trying to break her national record of 15 minutes 20 seconds for running 5000 m (121/2 laps of the track). Her average time per lap for the first 5 laps is 1 minute 13 seconds. What average lap time does she need for the remaining 71/2 laps?

• 1 minute 16 seconds

• 1 minute 14 seconds

• 1 minute 15 seconds

• 1 minute 17 seconds

A pancake stall sells sweet pancakes and savoury pancakes. The savoury pancakes can have three toppings (eggs,

ham, tomato) which may be used in any combination. The sweet ones come with orange, lemon or strawberry jam with either ice cream or fresh cream. How many combinations does the stall sell?

• 12

• 15

• 13

• 11

I am going to change my phone contract. The monthly contract I am considering costs $40 per month with 75 minutes of free calls and 100 free text messages. Additional calls cost 10¢ per minute and additional text messages 10¢ each.

An alternative is ‘Pay as you go’ which has no monthly charge but all calls cost 40¢ per minute and texts cost 10¢ each.

I typically make 100 minutes of calls and 60 text messages each month. Which would be the better contract for me and by how much?

• Pay as you go $3.50

• Contract $3.50

• Contract $ 5.25

• Pay as you go $5,25