Mathematics Quiz

Fill in the blanks with the decimal numbers, percentages, or fractions that are missing.

In a bag there are two white and three black balls. What is the probability that you will grab a white ball on the first try?

• 50%

• 40%

• 60%

• 20%

The weight of the bottle with the cap is 104 g. The bottle is 100g heavier than the cap. What is the weight of the cap?

At dinner, there are 5 people. If everyone wants to toast with everyone, how many times will they toast in total?

• 5

• 10

• 9

• 20

• 25

Calculate the ratios in percentages:

1) 22 out of 2000

2) 8 out of 20 miles

There are four figures in the picture. They are arranged according to a certain rule. Which of the given figures continues the series according to that rule?

• 
• 
• 
• 
• 

The scales are in balance. How heavy is each element?