SOLUTION: A Bag contains red, blue and white marbles. The ratio of red to blue marbles is 3 to 5. The ratio of blue marbles to white marbles is 7 to 4. What is the minimum number of marbles

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: A Bag contains red, blue and white marbles. The ratio of red to blue marbles is 3 to 5. The ratio of blue marbles to white marbles is 7 to 4. What is the minimum number of marbles      Log On


   

Question 413272: A Bag contains red, blue and white marbles. The ratio of red to blue marbles is 3 to 5. The ratio of blue marbles to white marbles is 7 to 4.
What is the minimum number of marbles in the bag?
Answer by sudhanshu_kmr(1152) About Me  (Show Source):
You can put this solution on YOUR website!
red: blue is 3:5 and blue : white is 7:4
combined ratio of red : blue: white is 21:35:20

minimum no. of marbles = 21 + 35 + 20 = 76