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Ahat [919]
3 years ago
9

In a local shelter, 300 people donated blood during the blood donation week. The samples collected of the different blood types

are shown in the graph below. How many more people with Type A blood donated blood than those with Type B blood?

Mathematics
2 answers:
Anna007 [38]3 years ago
8 0

Answer:

D)24 people

Step-by-step explanation:

Total number of people, x=300

Number of people donated blood with type A, y

=\frac{28}{100}\times x\\=\frac{28}{100} \times 300\\=84

Number of people donated blood with type B, z

=\frac{20}{100}\times x\\=\frac{20}{100} \times 300\\=60

⇒Number of people with Type A blood donated more than those with Type B blood= y-z=84-60= 24

andrew11 [14]3 years ago
7 0

Answer:

D) There are 24 more people who donated Type - A then Type -B.

Step-by-step explanation:

Total number of people who donated the blood in shelter = 300

Percentage of people who donated the type A = 28%

Percentage of people who donated the type B = 20%

Now, 28 %  of 300 = \frac{28}{100 } \times 300 = 84

So, the total number of people who donated the Type - A  = 84 people.

Also, 20 %  of 300 = \frac{20}{100 } \times 300 = 60

So, the total number of people who donated the Type - B  = 60 people.

So, the difference in the people who donated type A and Type B  

= Number of people who donated the {Type - A  - Type - B}

= 84 people -  60 people

= 24 people

or, the difference in the people who donated type A and Type B  = 24

Hence, there are 24 more people who donated Type - A then Type -B.

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