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271. How much water must be added to 60 liters of milk at 1 liter for Rs 20 so as to have a mixture worth Rs 15 a liter?
272. a bag contains only wheat. 5 kg of sand is added to the bag. the resultant mixture has 20% sand by weight. how much sand (in kg) must be added to the bag in order to form a mixture which has 50% wheat by weight?
273. In what ratio must water be mixed with milk to gain 25% ,if the mixture is sold at its cost price ?
274. How many kilograms of sugar costing Rs 8 per kilogram must be mixed with 27 kilogram of sugar costing Rs 5 per kilogram so that there may be a gain of 10% by selling the mixture at Rs 7.7 per kilogram?
275. A dishonest milkman professes to sell his milk at cost price but he mixes it with water and thereby gains 20% . The percentage of water in the mixture is:
276. the capacity of three vessels A,B and C is in the ratio 1:2:3. these vessels contain milk and water in the ratio 4:1,3:2 and 2:3 respectively (the vessels are filled with the milk - water solution to the brim). if the milk and water solution of these vessels are emptied together in a bigger vessel, then what will be the ratio of milk and water in the bigger vessel ?
277. 30 grams of an blend of nickel and copper contains 60% nickel ( by weight) Find the quantity of nickel that is to be mixed up with this blend so that it may contain 75% nickel.
278. a bag contains only wheat. 5 kg of sand is added to the bag. the resultant mixture has 20% sand by weight. how much sand (in kg) must be added to the bag in order to form a mixture which has 50% wheat by weight?
279. the capacity of three vessels A,B and C is in the ratio 1:2:3. these vessels contain milk and water in the ratio 4:1,3:2 and 2:3 respectively (the vessels are filled with the milk - water solution to the brim). if the milk and water solution of these vessels are emptied together in a bigger vessel, then what will be the ratio of milk and water in the bigger vessel ?
280. A bag contains only wheat. 5 kg of sand is added to the bag. the resulting mixture has 20% sand by weight. how much sand (in kg) must be added to the bag in order to form a mixture which has 50% wheat bt weight ?
281. he capacity of three vessels A,B and C is in the ratio 1:2:3. these vessels contain milk and water in the ratio 4:1,3:2 and 2:3 respectively (the vessels are filled with the milk - water solution to the brim). if the milk and water solution of these vessels are emptied together in a bigger vessel, then what will be the ratio of milk and water in the bigger vessel ?
282. A bag contains only wheat. 5 kg of sand is added to the bag. the resulting mixture has 20% sand by weight. how much sand (in kg) must be added to the bag in order to form a mixture which has 50% wheat bt weight ?
283. the capacity of three vessels A,B and C is in the ratio 1:2:3. these vessels contain milk and water in the ratio 4:1,3:2 and 2:3 respectively (the vessels are filled with the milk - water solution to the brim). if the milk and water solution of these vessels are emptied together in a bigger vessel, then what will be the ratio of milk and water in the bigger vessel ?
284. Susan has 58 candies. Sandra has 5 candies. if Sandra gives all of her candies to Susan, how many candies will Susan have?
285. Ashok has 84 chocolates. Shambu has 24 chocolates. If Ashok gives all of his chocolates to Shambu, how many chocolates will Shambu have?
286. the capacity of three vessels A,B and C is in the ratio 1:2:3. these vessels contain milk and water in the ratio 4:1,3:2 and 2:3 respectively (the vessels are filled with the milk - water solution to the brim). if the milk and water solution of these vessels are emptied together in a bigger vessel, then what will be the ratio of milk and water in the bigger vessel ?
287. A bag contains only wheat. 5 kg of sand is added to the bag. the resulting mixture has 20% sand by weight. how much sand (in kg) must be added to the bag in order to form a mixture which has 50% wheat bt weight ?
288. Some expression are simplified on the basis of a certain system.Find the correct answer for the unsimplified expression on that basis. If 216*343=13 and 729*1000=19, then find the value of 1331*1728.
289. Find the missing number, 14, 21, 35, 56, ____?
290. Ms. Sonu purchased a simple calculator for her personal purpose @ Rs. 114 and sold for his nephew @ Rs. 673, then what is the profit value ?
291. let us round the decimal values
292. Find the missing number, 94, 47, 47, ___, 47?
293. Find the missing number, ___, 54, 101, 148, 195?
294. What is the least number which when divided by 12, 16 and 18 leaves 9 as remainder in each case, but when divided by 27 leaves no remainder?
295. Find the missing number, ___, 54, 101, 148,195?
296. 7,9,8,10,9,11,10,12,-?
297. What is the least multiple of 11, which when divided by 3, 4, 5, 6 and 7, leaves the remainder 2, 3, 4, 5 and 6 respectively?