Mathematics — 2012

If P = {2,3,5,7} and Q = {2,4,6,8}, find P ∩ Q .

Which of the following numbers is an integer?

Find the Lowest Common Multiple ( LCM ) of 2 2 x 3 x 5 2 and 2 3 x 3 2 x 5.

How many diagonals are in a rectangle?

Simplify -4(3-5)+10-3(7+4)+30.

An iron rod 15 m long is divided into 12 equal parts. How long is each part?

Convert 42 to a base two numeral.

Simplify 5 7 x 5 4 5 2

A tank contains 400 litres of water. If 100 litres is used, what percentage is left?

Arrange the following fractions in descending order of magnitude:

Find the image of 3 under the mapping, x → 10 - 2 x .

Simplify 1 3 + 1 9 + 1 27

If 2 x = 5( x - 2) + 7, find the value of x .

The table below shows the day and night temperatures of a town during a week. Use it to answer the question below .

The table below shows the day and night temperatures of a town during a week. Use it to answer the question below .

A box contains 30 identical balls of which 16 are white and the rest yellow. If a girl picks a ball at random from the box, what is the probability that it is a yellow ball?

Find the truth set of 1 4 ( x + 3) ≤ 2 x - 1.

The perimeter of the figure below is 71 cm. Find the diameter of the semi-circumference portion.

Simplify 3x 4 - x - y 3 .

Kojo is 20% heavier than Afua. If Kojo weighs 6 kg, what is Afua’s weight?

Find the volume of a cylinder of height 3 cm and radius 2 cm.

Given the points S (5, -2) and T (3, 2), calculate the gradient of the line ST .

Kofi invested GH₵ 150,000 at 2.5% per annum simple interest. How long will it take this amount to yield an interest of GH₵11,250.00?

Express 3.75 as a mixed fraction.

A map is drawn to the scale 1:100,000. What distance in kilometres is represented by 5 cm on the map?

Given that r = ( -3 4 ) and s = ( 1 -3 ) , find r - 2 s .

Esi went to the market and bought 500 g of meat, 850 g of fish and 900 g of eggs. What is the total weight of the items she bought in kilograms?

A watch gains 1 1 2 minutes per hour. What is the total time gained from 12 noon to 12 midnight in a day?

A printing machine prints 600 books in 3 hours. How many books will the machine print in 5 hours?

The bearing of Atoru from Busase is 275°. What is the bearing of Busase from Atoru?

In a class of 24 pupils, 10 study French only and 8 study English only . If each pupil studies at least one of the two subjects, how many study English?

Convert 84 to a base five numeral.

In the diagrams below, triangle A 1 B 1 C 1 is an enlargement of triangle ABC . Determine the scale factor.

Find the least number that must be added to 308 to make it divisible by 19.

In a school of 940 pupils, the number of girls exceeds the number of boys by 150. How many girls are there in the school?

Which of the following fractions is equivalent to 3 5 ?

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In the diagram below, line PQ is parallel to RS and UV is a line drawn through PQ and RS .

Expand – x (3 – 2 x ).