In what ratio sugar at rs 30/kg should be mixed with sugar at rs 45/kg so that on selling the mixture at rs 42/ kg there is a profit of 20%?
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Answer:
2 : 1
Step-by-step explanation:
Hi,
Let the ratio in which we mix given two types of sugar be λ : 1
So, the cost price of the resultant mixture would be
30λ + 45/λ + 1.
Given that mixture is sold at 20 % profit, so selling price would become
(30λ + 45/λ + 1)(1 + 20/100) = 6/5*(30λ + 45/λ + 1)
But given that selling price of the mixture is Rs 42
So, 6/5*(30λ + 45/λ + 1) = 42
(30λ + 45/λ + 1) = 35
30λ + 45 = 35λ + 35
5λ = 10
λ = 2
Hence , in the ratio of 2 : 1 both the types of sugar should be mixed.
Hope, it helps !
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