Friday, March 11, 2011

MIXTURE AND ALLIGATION


QUESTION

QUES 1: A tea merchant blends two types of tea costing Rs.16.50 per Kg and Rs.14.50 per Kg each. In what ratio should these two types of tea be mixed so that the merchant got 5% profit, if he sells the mixture at Rs.15.75 per Kg?

QUES 2: A tea merchant blends two types of tea costing Rs.32.50 per Kg and Rs.40 per Kg each. In what ratio should these two types of tea be mixed so that the resulting mixture may cost Rs.36.20 per Kg?

QUES 3: The ratio of girls and boys is 2:5. If the average weight of girls is 60 and the average weight of all students is 35. Find the average age of the boys?

QUES 4: The cost of milk is Rs.16/liter. In what ratio must be water be added so that the average cost of mixture is Rs.11/liter?

QUES 5: The cost of chair and table is Rs.6000. Chair is sold at 10% profit and the table is sold at 18% profit. If the total profit is Rs.720. find the cost of table?

QUES 6: A bag contains 160 notes of Rs.50 and Rs.20. if the total cost is Rs.5120. find the number of notes of Rs.20?

QUES 7: A container contains 2000 liter petrol. From this container 50 liter of petrol was taken out and replace with diesel. This process repeats further two times. How much percent petrol is now contained by container?

QUES 8: The ratio of milk and water in a vessel is 4:5. In another vessel the ratio of milk and water is 3:1. In what ratio should the mixture of   both the containers be taken so that the resulting ratio should be 1:1?

QUES 9: A container contains 200 liter milk. From this container 5 liter of milk was taken out and replaces further ones. How much milk is now contained by container?

QUES 10: A container contains 90 liter milk. From this container 9 liter of milk was taken out and replace with water. This process repeats further two times. How much milk is now contained by container?

QUES 11: A mixture of 60 liter of milk and water contains 5% of water. How much water must be added to make 15% of resulting mixture?

QUES 12: Rahul purchase 2 bikes of Rs.50000 and sold at Rs.60000. if he sale first at 12% profit and other at 32% profit. Find the cost of the bike which sold at 12% profit?

QUES 13: A tea merchant blends two types of tea costing Rs.8.50 per Kg and Rs.12 per Kg each. In what ratio should these two types of tea be mixed so that the resulting mixture may cost Rs.9.25 per Kg?

QUES 14: A shopkeeper has 220kg of rice. If he sold some part of if at 20% profit and the rest at a profit of 9%. If he got a profit of 13% in all. Then how much rice did he sold at 9% profit?

QUES 15: Rs.50.40 are distributed among 60 boys and girls in such a way that each boy get 90 paisa and each girl get 70 paisa. Find the number of boys and girls?

QUES 16: A man has a chemical costing Rs. 9 per liter. In what ratio must be water be added so that, there can be a profit of 20% on selling it as Rs. 9 per liter?

QUES 17: A shopkeeper sold two types of rice costing Rs.12.50 per Kg and Rs.16 per Kg each. In what ratio should these two types of rice be mixed so that there can be a profit of 10%, on selling it as Rs.15 per Kg?

QUES 18: The average age of employee in an office is 40 years. The average of male and female employees is 42.5 years and 39.25 years respectively. Find the ratio of male and female employees?

QUES 19: A mixture of 240 liter sprit and water contains 26% of sprit. How much sprit must be added to make 60% of resulting mixture?

QUES 20: 1105 chocolates are distributed among 85 boys and girls. Each boy get 16 chocolate and each girl get 11 chocolate. Find the number of boys and girls?


ANSWERS

Question
Answer
Question
Answer
1
1:3
11
7 Liters
2
38:37
12
30000
3
25
13
11:3
4
11:5
14
140 Kg
5
1500
15
42 Boys  & 18 Girls
6
96 Notes
16
5:1
7
92.5%
17
52:25
8
9:2
18
3:10
9
190.125 Liters
19
204 Liters
10
65.61 Liters
20
34 Boys  & 51 Girls

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