Quiz about Porcentajes

Question 1

What is 10% of 275

Accepted Answer

27.5

Answer

27

Answer

27.05

Answer

2750

Question 2

What is 5% of 50

Accepted Answer

2.5

Answer

5

Answer

2

Answer

3

Question 3

What is 90% of 300

Accepted Answer

270

Answer

280

Answer

220

Answer

210

Question 4

Question 4.

Accepted Answer

24

Answer

3

Answer

2.4

Answer

6

Question 5

In a wetland, 400 birds are observed in 2018 and 450 birds are observed in 2019. Find the percentage change of the no. of birds.

Accepted Answer

increased by 12.5%

Answer

decreased by 12.5%

Answer

increased by 50

Answer

increased by 50%

Question 6

The height of Tom is 132cm. He is 10% taller than last year. What is his height last year?

Accepted Answer

120 cm

Answer

118.8 cm

Answer

119 cm

Answer

122 cm

Question 7

The fee of lunch was $40 per head. It becomes $30 per head this year. Find the percentage decrease.

Accepted Answer

25%

Answer

$10

Answer

10%

Answer

-25%

Question 8

Which is bigger:
25% of 200
OR
20 % of 250

Accepted Answer

They are the same

Answer

25% of 200

Answer

20% of 250

Question 9

What is the percent of the shaded region in the figure?

Accepted Answer

60%

Answer

12%

Answer

40%

Answer

8%

Question 10

What is the result when 80 is decreased by 20%?

Accepted Answer

64

Answer

60

Answer

72

Answer

16

Question 11

A computer was in a 30% sale. What percentage was the computer worth now?

Accepted Answer

70%

Answer

100%

Answer

30%

Answer

130%

Answer

None of the above

Question 12

Find the new value when $20 is increased by 10%

Accepted Answer

$22

Answer

$21

Answer

$30

Answer

$40

Question 13

Find the new price when an item marked at $30 is marked up by 40%

Accepted Answer

$42

Answer

$30.40

Answer

$34

Answer

$70

Question 14

A man had a mass of 70 kg. After six months on a diet, his mass was 63 kg. What is the percentage reduction in his mass?

Accepted Answer

10

Answer

11.1

Answer

11

Answer

70

Question 15

There were 160 smarties in the box yesterday, but now there are 110, what is the percentage change?

Accepted Answer

31.25%

Answer

27.5%

Answer

37.25%

Answer

40%

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