SOLUTION: he ratio of beans to peas in a jar is 2:5 and there are a total of 840 peas and beans. how many beans should be added to make the ratio 1:2?

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Question 1054815: he ratio of beans to peas in a jar is 2:5 and there are a total of 840 peas and beans. how many beans should be added to make the ratio 1:2?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi   

 Let x represent the original constant of proportionality:

2x + 5x = 840

x = 120, 240 beans, 600peas

|

%28240%2Bb%29%2F600+=+1%2F2 | Cross Multiplying to solve

2(240+b) = 600

b = 60 beans should be added

Checking

300/600 = 1/2 CHECKS!