In what ratio mixtures of 22% concentration of alcohol and 35% concentration of alcohol are to be added so that the resultant mixture will have 30% concentration of alcohol?

- In what ratio rice at 34 Rs/kg should be mixed with the rice at 27 Rs/kg so that selling mixture at Rs 39 per kg gives the profit of 30% if the quantity of 1st type of rice is 39 kg what will be the quantity of 2nd type of rice?
- A sum of ₹ 31 was divided among 50 students. If each boy got 70 paisa and each girl got 45 paisa. Find the number of boys.
- A shopkeeper has 76 kg rice a part of it, he sells at the profit of 48% and rest at loss of 28% and he get the loss of 16% so what is the quantity sold at the loss of 28%.
- There are some Crows and Cows in a field. If the total number of heads in the field is 480 and the total number of legs is 1320, what is the number of crows in the field?
- In what ratio rice at 50 Rs/kg should be mixed with the rice at 36 Rs/kg so that selling mixture at Rs 48 per kg gives the profit of 20% if the quantity of 1st type of rice is 28 kg what will be the quantity of 2nd type of rice?
- A shopkeeper has 60 kg rice a part of it, he sells at the profit of 30% and rest at loss of 10% and he get the loss of 8% so what is the quantity sold at the loss of 10%.
- One type of liquid contains 15% of benzene, the other contains 20% of benzene. A can is filled with 6 parts of the first liquid and 4 parts of the second liquid. Find the percentage of benzene in the new mixture.
- In what ratio coffee at 285 Rs/kg should be mixed with the coffee at 320 Rs/kg so that after mixture its rate become 300 Rs/kg if the quantity of 1st type is 28 kg what will be the quantity of the 2nd coffee?
- In what ratio coffee at 320 Rs/kg should be mixed with the coffee at 370 Rs/kg so that after mixture its rate become 335 Rs/kg if the quantity of 1st type is 28 kg what will be the quantity of the 2nd coffee?
- In what ratio rice at 47 Rs/kg should be mixed with the rice at 28 Rs/kg so that selling mixture at Rs 45 per kg gives the profit of 25% if the quantity of 1st type of rice is 48 kg what will be the quantity of 2nd type of rice?

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