The cost of pure milk is Rs 16 per litre. On adding water, the mixture is sold at Rs 15 per litre. In this way, the milkman earns 25% profit. What is the ratio of milk and water in the mixture?

Four persons—M, N, O and P—distrlbuted a sum of Rs 44352 among themselves. M got $3\over 8$ th of total amount. N got $1\over 6$ th part of the remaining amount. Thereafter, theremaining amount was divided between O and P in the ratio 3 : 2. The amount received by P is

Three persons A, B and C start a business with Rs. 12800, Rs. 16800 and Rs. 9600 respectively. At the end of the year, B received Rs. 13125 as share in total profit. What is the share of Mr C in the profit?

A shopkeeper has goods of worth Rs. 6000. He sold half of the goods at a gain of 12%. At what profit per cent should he sell the remaining half of the stock so that he gets 18% profit on the whole?

Average score of a cricketer in 13 matches is 42 runs. If the average score in the first 5 matches be 54 runs, what is the average score in the last eight matches

The perimeter of a rectangle whose length is 6 metres more than its breadth is 84 metres. What is the area of the triangle whose base is equal to the diagonal of the rectangle and height is equal to the length of the rectangle?