Mathematics quick practice

Question 1 of 10

Three friends invested in a business in the ratio 2 : 4 : 2. They made a profit of GH₵ 2,000. (a) Find the total number of parts. (b) Find each person's share. (c) What fraction of the profit did the first friend get?

Question 2 of 10

Find the area of a triangle with base 38 cm and height 12 cm.

Question 3 of 10

In a pie chart of 60 pupils, one pupil is represented by

Question 4 of 10

Each interior angle of a regular polygon with 10 sides is ___°.

Question 5 of 10

A rotation of 360° leaves a shape in its original position.

Question 6 of 10

If y = 3, then 2y² = 36.

Question 7 of 10

When (x + 9)(x + 1) is expanded, the constant term is ___.

Question 8 of 10

If A = {a, b} and B = {b, c}, then A ∪ B is

Question 9 of 10

A bag costs GH₵ 200. Its price rises by 20%. The new price is GH₵ ___.

Question 10 of 10

A drawing pin was dropped 20 times and landed point up 4 times. The experimental probability of landing point up, as a fraction in its lowest terms, is ___.