27. Brad mixes seeds to attract birds. His Blue mix is 55%
sunflower and 45% bluegrass. His Rye mix is 30% sunflower and
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70% ryegrass. His Mastermix combines some of each of the Blue :24-
and Ryemixes. If Master mix is 45% sunflower, how much of
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each kg of Master mix is Blue mix?
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(A) 450 g (B) 480 g
(C) 600 g
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(D) 750 g
Ans. C
9=4
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Answers
Answer:
I m sorry I couldn't understand this question
Answer:
Step-by-step explanation:
Use the simplest test approach. Total Master Mix is 1000 gms.
Lets consider that Blue Mix is 500 Gms and Rye Mix also is 500 Gms
If Blue Mix is 500 gms, this will make Sunflower mix to be 275 gms and bluegrass mix to be 225 gms
Similary in Rye Mix, Sunflower Mix is 150 gms and Rye Grass mix is 350 gms
If you take out the percentage of Total Sunflower Mix in Master Mix with both Blue Mix and Rye Mix equal- 500 Gms, it comes out to be 42.5 %
In Multiple Choice, its enough to find out the right answer.
In actual Master Mix, it has to be 45% rather than 42.5% and its only possible if Blue Mix is slightly more than 500 gms. So 450gms, 480 are immediately out of question.
750 gms also out of question as it will increase the Sunflower mixture for more than 45%, so 600gms is natural choice.
But we ca further solve it for surity.
Now, Lets consider Blue Mix to be 600 gms as 500 gms did not work out for 45% sunflower mixture. So Rye Mix will become 400 gms.
Now When ou will solve this, it will give you exact 45% of sunflower mixture, hence 600gms is your right answer.