Question

ANSWER PLS ASAP

Julie has a bag containing p blue marbles and q red marbles. The ratio of blue to red is 2:3. She adds r blue marbles. The ratio of blue marbles to red marbles is now 2:1. What is the ratio between p and r?

Answer 1

Lets say for arguments sake that the bag contained  2 blue and 3 red marbles

p:q = 2:3 In order  to get a ratio of 2:1 we would have to add 4  blue  marbles

(6:3 = 2:1).

So the ratio p to r =  2:4  = 1:2  answer.