Percentage and proportionality

 $Write\ \frac{1}{2}\ as\ a\ percentage$   

• 10%

• 15%

• 20%

• 50%

Write 3 of 4 as percentage:

• 0.75%

• 25%

• 75%

• 100%

12% of 200 =

• 6

• 20

• 24

• 48

: The percentage of the colored part in the following figure is:

• 25%

• 33.3%

• 75%

• 80%

In an urn there are 7 blue balls, 2 red and 1 black. The percentage of blue balls in the urn is:

• 10%

• 20%

• 70%

• 100%

Milk gives 12% of its mass as cream. How many kg of cream will 80 kg of milk give?

• 960 kg

• 96 kg

• 10.2 kg

• 9.6 kg

What is the price of an object labeled 10000 L.L. if you can benefit from a 30% discount on its price?

• 3000 L.L.

• 7000 L.L.

• 9970 L.L.

• 13000 L.L.

There are 120 students in grade 7 sections. 60 % of them are boys, then the number of girls in grade 7 is:

• 48

• 72

• 60

• 50

The table below is a proportionality table, then x=

• 0.09375

• 12

• 1.5

• 32

After an increase of 15%, the price of an article becomes 23 000 L.L.

The original (old) price of this article is:

• 17000 L.L

• 20000 L,L

• 19550 L,L

• 26450 L.L