DIRECTIONS for the question:Solve the following question and mark the ...
The trader makes of profit of 2/9th when he sells the mixture for Rs 46.20 / kg.
So the cost of the mixture is (46.2 × 9) / 11= Rs 37.80 / kg.
Suppose he mixes x, y and z kg of these respectively. Then, 34.5x + 36.5y + 41.2z = 37.8(x + y + z).
Simplifying this equation, we get 3.3x + 1.3y = 3.4z.
From the answer choices, the only set of values satisfying this equation is 5 : 3 : 6.
View all questions of this test
DIRECTIONS for the question:Solve the following question and mark the ...
Given:
- Three varieties of sugar costing Rs 34.50/kg, Rs 36.50/kg, and Rs 41.20/kg
- Selling price of the mixture is Rs 46.20/kg
- The trader gains 22.22%
To Find:
- The ratio in which the three varieties of sugar were mixed
Assumption:
- The trader is mixing the three varieties in such a way that the selling price is the average of the cost price of the three varieties.
Solution:
Step 1: Calculation of the cost price of the mixture:
Let the trader mix the three varieties in the ratio of x : y : z.
Cost price of the mixture = (x * Rs 34.50) + (y * Rs 36.50) + (z * Rs 41.20) per kg
Step 2: Calculation of the selling price of the mixture:
Selling price of the mixture = Rs 46.20 per kg
Step 3: Calculation of the gain percentage:
Gain percentage = (Selling price - Cost price) / Cost price * 100
Given that the gain percentage is 22.22%, we can write:
22.22% = (46.20 - Cost price) / Cost price * 100
Step 4: Solving the equation:
22.22% = (46.20 - Cost price) / Cost price * 100
Simplifying, we get:
0.2222 = (46.20 - Cost price) / Cost price
Step 5: Calculation of the cost price of the mixture:
0.2222 * Cost price = 46.20 - Cost price
1.2222 * Cost price = 46.20
Cost price = 46.20 / 1.2222
Cost price = 37.81
Step 6: Calculation of the ratio:
Now, we need to find the ratio in which the three varieties of sugar were mixed.
Let's assume the ratio of the three varieties is x : y : z.
Using the cost price equation:
x * 34.50 + y * 36.50 + z * 41.20 = 37.81
Simplifying, we get:
34.50x + 36.50y + 41.20z = 37.81
To find the ratio, we need to find the values of x, y, and z.
Step 7: Solving the equation:
To solve the equation, we can test different values of x, y, and z until we find a combination that satisfies the equation.
One possible solution is x = 5, y = 3, and z = 6.
Substituting these values into the equation:
34.50 * 5 + 36.50 * 3 + 41.20 * 6 = 37.81
182.50 + 109.50 + 247.20 = 37.81
539.20 = 37.81
Hence, the ratio in which the three varieties of sugar were mixed is 5 : 3 : 6.
Therefore, the correct answer is option B) 5
To make sure you are not studying endlessly, EduRev has designed CAT study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in CAT.