Year 9 Numeracy Skills NA6 - 6I

L4

In a test Marcos scored 12 out of a possible 25. What is this mark as a percentage?

• 0.48%

• 12%

• 25%

• 48%

L5

A car uses petrol at the rate of 7.5 litres per 100km travelled. Approximately how much petrol will it use to travel 750km?

• 10 L

• 60 L

• 75 L

• 100 L

L5

Lydia is buying balloons for a party. Each bag contains 8 balloons. If she needs 100 balloons, how many bags will she need to buy?

L5

A photo was 10 cm long and 8 cm wide. It was enlarged so that it is now 40 cm wide. How long is the enlarged photo?

L6

Bintang travelled 360 kilometres in 6 hours. She had travelled the first 2 hours at an average speed of 80km/h. At what speed did she then travel to complete her journey?

L6

A shopkeeper found that the ratio of masses of oranges to lemons to mandarins sold is 3 : 1 : 4. If sales totalled 120 kilograms, what mass of oranges were sold?

• 15 kg

• 30 kg

• 45 kg

• 60 kg

L6

The ratio of dogs to cats is 3 : 4 in Liverpool Animal Shelter. It has 36 dogs. Yesterday, three dogs and three cats got picked up by their foster owners. What is the new ratio of dogs to cats?

 $2\sqrt{7}\times4\sqrt{3}=$  

•  $8\sqrt{21}$  

•  $8\sqrt{10}$  

•  $6\sqrt{21}$  

•  $6\sqrt{10}$  

What is $\frac{5}{3\sqrt{2}}$ fully simplified with a rational denominator equal to? 

•  $\frac{15\sqrt{2}}{18}$  

•  $\frac{5\sqrt{2}}{2}$  

•  $\frac{5\sqrt{2}}{3}$  

•  $\frac{5\sqrt{2}}{6}$  

 $\frac{5\sqrt{42}\times4\sqrt{6}}{10\sqrt{7}}=$