Bài ôn tập G5

Change this percentage into fraction

25% = ...

Convert this ratio into percentage:

30 : 100 =

• 3%

• 30%

• 0.3

What is the mean of following numbers?

4, 1, 3, 7, 5

• 7

• 4

• 5

• 3

What is the median of this set of numbers?

2, 5, 6, 2, 1, 6, 7

What is the median of this set of number?

5, 4, 7, 3, 8, 9

• 6

• 5

• 3

• 4

What is 30% of $200?

• $30

• $60

• $50

• $140

Find the area of triangle.

The diameter of a circle is 12 cm. Find the circumference.

• 56.52 cm

• 113.04 cm

Find the area of triangle ABC. Given that AB = 15, the corresponding height is 12.

Find the area of trapezium.

• 93 cm

• 186 cm