FFAT MATH XI

 $\frac{1212.3}{299.35\times\sqrt{24.73}}$  By writing each number correct to 2 significant figures, estimate the value of   

•  $\frac{4}{5}$  

•  $\frac{5}{4}$  

•  $\frac{8}{3}$  

•  $\frac{12}{5}$  

• none of these

Arrange these fractions in order, starting with the smaller,

 $\frac{4}{5}\ ,\ \frac{9}{10}\ ,\ \frac{17}{20}\ ,\ \frac{21}{25}\ ,\ \frac{41}{50}$  

•  $\frac{4}{5}\ ,\ \frac{9}{10}\ ,\ \frac{17}{20}\ ,\ \frac{21}{25}\ ,\ \frac{41}{50}$  

•  $\frac{41}{50},\ \frac{21}{25}.\ \frac{17}{20},\ \frac{9}{10}\ ,\ \frac{4}{5}$  

•  $\frac{4}{5}\ ,\ \frac{41}{50}\ ,\ \frac{21}{50}\ ,\ \frac{17}{20}\ ,\ \frac{9}{10}$  

•  $\frac{9}{10}\ ,\ \frac{17}{20}\ ,\ \frac{21}{50}\ ,\ \frac{41}{50}\ ,\ \frac{4}{5}$  

• none of these

 $\frac{4}{11}-\frac{2}{7}$  

Evaluate

•  $\frac{6}{77}$  

•  $\frac{6}{11}$  

•  $\frac{2}{77}$  

•  $\frac{-6}{77}$  

• None of these

Evaluate 9.03 - (4.273 + 2.3 ).

• 9.03

• 6.573

• 2.4

• 2.457

• None of these

Express 96 as a product of its prime factors.

• 2⁵ x 3

• 2⁴ x 3

• 2 x 3

• 2⁵ x 3²

• None of these

The length of a side of a square is given as 57 mm, correct to the nearest millimetre, Write down the upper bound for the length of side.

• 57 mm

• 57.5 mm

• 57.05 mm

• 56.5 mm

• None of these

The temperature in a freezer is - 18 ^oC. The out side temperature is 24 ^oC.

Find the difference between the outside temperature and the freezer temperature.

• 42 ^oC

• 24 ^oC

• 06 ^oC

• - 06 ^oC

• None of these

A car travelled from A to B and then continued to C. It travelled from A to B at an average speed of 30 km/h. The distance from A to B is 90 km.

How many hours did the journey from A to B take?

• 3 hours

• 3 m

• 60 km

• 3 km

• None of these

The cost price of bicycle A is $620. The shopkeeper sells it and makes a profit of 45% . Calculate the selling price.

• $ 900

• $ 279

• $ 620

• $ 899

• None of these

A car travels at 90 km/h.

How many meters does it travel in 1 second?

• 25

• 90,000

• 9000

• 250

• None of these