Question

5. A paint sample needs 3 drops of blue paint to 4 drops of green paint to make 5

gallons of paint. How many gallons of paint will be made if 35 drops of color is used?
A 20 gallons
B 25 gallons
C 30 gallons
D 15 gallons
E
35
7 drops
S
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y die
5
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35

Answer 1

Step-by-step explanation

As we can see on the statement, the ratio between the blue and the green paint is 3:4

The amount of gallons of paint obtained is 5 gallons.

If we need 3+4=7 drops of paint to obtain 5 gallons, then we can apply the unitary method in order to get the number of gallons of paint obtained for 35 drops as shown as follows:

`\text{?gallons}=35\text{ drops}\cdot\frac{5\text{ gallons}}{7\text{ drops}}`

Multiplying numbers and simplifying:

`\text{?gallons}=25\text{ gallons}`

In conclusion, the number of gallons is 25