17. Steve counts the number of goals he scores in six 5-a-side football games. The

counts were:

3, 4, 2, 0, 1, 8

(a) What was the mean score for the games he counted?

(b) What was the range?

(c) In the next game he scored enough goals to increase his mean to 4. How many

goals did he score in the seventh game?

18.

(a) On a train there are 140 men and 200 women. What is the ratio of men to

women written in its simplest form?

(b) I am making a scale model of The Eye-Full Tower, which is 120m tall. If the scale

is 1:50, how long will the model be (in cm)?

(c) My friend Sanjay is making a scale model of the London Ear (a famous landmark

in London). The London Ear is 80m tall and his model is 150cm tall. What is the

scale of the model, in its simplest form?

19.

(a) My other friend Minka was doing some gardening when she snapped a

bamboo cane. The cane was 2.05m long and is now 156cm long. What length of

cane snapped off?

(b) In her garden, Ying-Ge is sowing some grass seed. The garden has an area of

158m2

and each packet has enough seed for 12m2

. How many packets does YingGe need to buy?

21. On my wall I want to put some stickers of my favourite pop star Singing Steve.

The space I have available is 55cm by 60cm and the stickers are each 15cm by

5cm. What is the maximum number of stickers I can fit on the wall?

22. Two runners are having a race. Gary starts running from the start line at 10m/s.

Two seconds later Andy starts running from the start line at 12m/s.

(a) How long after Gary starts running does Andy catch up with him?

(b) How far are they both from the start line when Andy catches up with Gary?