W1 TS Class 1 Term 3

Julia has been staying in a hotel on a business trip. When she checks out, the hotel’s computer isn’t working, so th receptionist makes a bill by hand from the receipts, totalling $605. Julia thinks she has been overcharged, so she checks the itemised bill carefully.

Room: 5 nights at $84.00 per night

Breakfast: 4 at $12.00 each

Dinners: 3 at $20.00 each

Telephone: 10 units at $2.00 per unit

Bar: various drinks totalling $25.00

Laundry: 4 blouses at $5.00 each

It appears that the receptionist miscounted

one of the items when adding up the

total.

Which item has Julia been charged

too much for?

• Laundry 5$

• Dinner 20$

• Breakfast 12$

• Room 84$

A drawer contains eight blue socks and eight black socks. It is dark and you cannot tell the difference between the two colours.

What is the smallest number you will

have to take out to ensure that you have

a matching pair?

• 8

• 9

• 3

• 2

A drawer contains eight blue socks and eight black socks. It is dark and youcannot tell the difference between the two colours.

What is the largest number you can take

out and still not have a matching pair?

• 3

• 2

• 8

• 9

A drawer contains eight blue socks and eight black socks. It is dark and youcannot tell the difference between the two colours.

What is the largest number you can take

out and still have all of one colour?

• 2

• 3

• 8

• 9

A drawer contains eight blue socks and eight black socks. It is dark and you cannot tell the difference between the two colours.

What is the smallest number you can take out to be sure that you have one of each colour?

• 3

• 10

• 8

• 9

A drawer contains eight blue socks and eight black socks. It is dark and you

cannot tell the difference between the two colours.

What is the smallest number you can

take out to be sure you have a blue pair?

• 7

• 8

• 10

• 9

The petrol usage of a number of cars has

been measured. Each car started with a

full tank, then made a journey (all journeys

were over similar roads). After the journey

the tank was filled to the top, the amount

of petrol needed to fill it being recorded.

The results are shown below. Put the cars

in order of their petrol efficiency (km/litre),

from lowest to highest.

Car Length of journey (km) Petrol used (litres)

Toyota 360 km 30 liters

Nissan 450 km. 48 liters

Suzuki 600km. 75 liters

Ford 555 km. 63 liters

BMW 690 km. 48 liters

• 1 BMW

  2. Toyota

  3.Suzuki

  4. Nissan

  5. Ford

• 1 Ford

  2.BMW

  3.Suzuki

  4.Toyota

  5. Nissan

• 1.Suzuki

  2.Ford

  3.Nissan

  4.Toyota

  5.BMW

• 1 Nissan

  2.Ford

  3.Suzuki

  4. BMW

  5. Toyota