Site Map

Ratio and proportion math

by J. Doe
(N. Carolina)

On Free practice test #4, Question #8 - I need help with this question:

Two solutions are combined in a 3:1 ratio to make a custom compounded solution. How many of each is required to make 200mL of this mixture?

A. 125mL : 75mL
B. 210mL : 90mL
C. 120mL : 80mL
D. 150mL : 50mL

Comments for Ratio and proportion math

Click here to add your comments

question 8 to quiz 4
by: Anonymous

3:1 ratio making 200 mL
total is 4
3x200/4= 150 mL
1x200/4= 50 mL
Answer is D

I hope this helps
Answer
by: Anonymous

150:50
Quiz 4 question 8
by: Anonymous

3+1= 4
200/4=50
50x3=150
50x1=50
Answer: 150:50
another tip
by: Johnson Meloottu CPhT

we can ignore answer b right away. Total ml is 300 in those answer.
Percent, and ratio
by: Anonymous

Calculate the amount of atropine stock solution
Concentration 0.5% needed to compound the following
Prescription:atropine sulfate 1:1000, sterile water
Qs ad 300ml
B.how much sterile water has to be added to complete
This order??
answer
by: Anonymous

answer is 250 mls of sw

Click here to add your comments

Join in and ASK your Questions! It's easy to do. How? Simply click here to return to Math questions.