Percentages
Rates
Time
Volume
World Animal Facts
100

How much money do you save on these boardshorts?

$8

100

Find the average speed for this drive in km/h.

90 km/h

100

Write the time on this clock in 24-hour time.

15:45

100

What is the volume of this cube?

27 cm³

100

Which black-and-white bird from Antarctica cannot fly but is an excellent swimmer?

Penguin

200

What percentage of the grid is shaded?

35%

200

Which milk is the better buy? Use the price per litre to explain.

The 3 L bottle ($1.50/L vs $1.60/L)

200

What time does the movie finish?

10:15 pm

200

Find the volume of this rectangular prism.

60 cm³

200

What is the tallest land animal in the world?

Giraffe

300

A Fremantle surf shop adds 10% GST to the wetsuit. Find the total, x.

$66 (GST = $6)

300

How many minutes will it take to fill the empty tank?

15 minutes

300

How long does the train take to get from Mandurah to Perth?

50 minutes

300

How many litres of water does this fish tank hold when it is full? (1000 cm³ = 1 L)

60 L (60 000 cm³)

300

What is the world's largest fish, which can grow about as long as a Transperth bus?

Whale shark

400

By what percentage did the price of unleaded fuel increase?

A) 27%  B) 13%  C) 15%  D) 1.5%

C) 15% (increase of 27 c ÷ $1.80)

400

Use the graph to find the cyclist's speed in km/h.

A) 30 km/h  B) 2 km/h  C) 7.5 km/h  D) 15 km/h

D) 15 km/h (30 km in 2 h)

400

A footy match kicks off at 7:30 pm in Sydney. What time is it in Perth?

A) 10:30 pm  B) 4:30 pm  C) 5:30 pm  D) 7:30 pm

B) 4:30 pm

400

Find the volume of this rainwater tank to 1 decimal place. (V = πr²h)

A) 6.3 m³  B) 12.6 m³  C) 3.1 m³  D) 25.1 m³

A) 6.3 m³ (about 6283 L)

400

What is the largest animal ever to have lived on Earth, weighing over 100 tonnes?

A) African elephant  B) Whale shark  C) Blue whale  D) Giant squid

C) Blue whale

500

Find the final price of the phone after both discounts.

A) $780  B) $810  C) $840  D) $900

B) $810 ($1200 → $900 → $810. It's not 35% off!)

500

How much does it cost to run this heater?

A) $3.72  B) $37.20  C) $0.74  D) $12.00

A) $3.72 (2.4 × 5 = 12 kWh; 12 × 31 c)

500

Find the runner's average time per kilometre, in minutes and seconds.

A) 5 min 30 s  B) 5 min 3 s  C) 5 min 6 s  D) 6 min 6 s

C) 5 min 6 s per km (1530 s ÷ 5 = 306 s)

500

The pool is filled to the top with a hose. How many hours does it take? (1 m³ = 1000 L)

A) 4 hours  B) 48 hours  C) 2400 hours  D) 40 hours

D) 40 hours (48 m³ = 48 000 L; 48 000 ÷ 20 = 2400 min)

500

An African elephant eats about 150 kg of food in one day. About how many kilograms is that in one week?

A) 157 kg  B) 1050 kg  C) 1500 kg  D) 900 kg

B) 1050 kg