OLNA Practice 3

A gardener buys a hose with a length of 18000 mm. He adds an extension of 650 cm. What is the total length of the hose?

• 18.65 m

• 24.5 m

• 8.3 m

• 83 m

The scale on a map is 1 : 3000. On the map, a length of road is 7 cm. How long is the road in real life?

• 21 000 m

• 2100 m

• 210 m

• 21 m

If Adelaide is 150 minutes ahead of Perth, what time is in Adelaide when it is 4:40 pm in Perth?

• 6:10 pm

• 7:00 pm

• 6:30 pm

• 7:10 pm

How much change will you receive from $100 if you buy 24 mangoes at $2.50 each?

• $60

• $37.50

• $42.50

• $40

In a 4 x 400 m race the four runners ran times of 47 seconds, 55 seconds, 53 seconds and 49 seconds.

What was the total time for the team?

• 2 minutes 4 seconds

• 3 minutes 54 seconds

• 3 minutes 24 seconds

• 3 minutes 34 seconds

A family travelling to a different country which has the currency Goona.

1 Australian dollar = 8100 Goona.

If they need ten million Goona, approximately how many Australian dollars will they need to exchange?

• $120

• $1200

• $6000

• $12 000

Ondyernup has an average annual rainfall of 52 cm. Last year, only 230 mm of rain fell in Ondyernup. How many millimetres is this below the average?

• 290 mm

• 2790 mm

• 4970 mm

• 310 mm