Problema Solution

300 grams of type a raisin bran is mixed with 500 grams of type b raisin bran to produce a mixture which is 11% raisins. Type a raisin bran has twice as many raisin per kilogram as type b. what percentage of raisins are in each type of raisin bran?

Answers should be 16% of type a, 8% of type b

Answer provided by our tutors

let


p = the percentage of type b used for the mix

2p = the percentage of type a used for the mix


2p*300 + p*500 = 0.11*800


by solving we find


p = 0.08 or 8%


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2p = 2*0.08 = 0.16 or 16%


16%of type a and 8% of type b are used for the mix.