In what ratio must water be mixed with Milk costing Rs.32 per litre to obtain a mixture worth of Rs. 24 per litre?

By Alligation rule: [if gte msEquation 12]>

- 15 years ago, the average age of all the 80 teachers of the college was 50 years. 8 years ago, the principal has retired from her post at the age of 60 years. So after one year from that a new principal whose age was 56 years recruited from outside. Find the present average age of all the teachers is, if principal is also considered as a teacher?
- The Jar contains only 8 litres of milk and the rest is water. A new mixture in which concentration of milk is 30%, is to be formed by replacing the Jar mixture. How many litres of mixture shall be replaced with pure milk if there was initially 32 litres of water in the mixture?
- Find the smallest number which when successively divided by 4, 7 and 5 will give the remainder 2, 1, 3.
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- Anju deposited two parts of a sum of Rs. 30,000 in different banks at the rate of 15% per annum and 12% per annum respectively. In one year she got Rs. 4140 as the total interest. What was the amount deposited at the rate of 12% per annum?
- A shopkeeper has 78 kg rice a part of it, he sells at the profit of 26% and rest at loss of 13% and he get the loss of 9% so what is the quantity sold at the loss of 13%.
- If a wheel covers a distance of 880 m in 40 rotations, then the diameter of the wheel is?
- A merchant has 1200 kg of sugar, part of which he sells at 9% profit and the rest at 15% profit. He gains 11% on the whole. The quantity (in kg) sold at 15% profit is:
- In what ratio coffee at 265 Rs/kg should be mixed with the coffee at 305 Rs/kg so that after mixture its rate become 280 Rs/kg if the quantity of 1st type is 45 kg what will be the quantity of the 2nd coffee?
- A solution contains 30L of pure milk. 10% of his this is taken out. Another 15% of the remaining solution is taken out and finally 20% of the contents left is taken out. The total content taken out replaced with water. Find the ratio of water to milk in the final solution.

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