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ESE 2021: General Aptitude (Mixture and Alligation)

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Question 1

In alloy zinc and copper are in the ratio 1:2. In the second alloy, the same elements are in the ratio 2:3. If these two alloys are mixed to form a new alloy in which two elements are in the ratio 5:8, the ratio of the two alloys in the alloys is:

Question 2

In a mixture of 240 lt. water is 20% and rest is Milk. What quantity of mixture should be taken out and replaced with water so that water becomes 40%?

Question 3

A mixture contain wine and water in the ratio of 7:3 & another mixture contaits ratio of 3:5 How many lit of the first to be mixed with 50 litr of second to make the mixture in equal qty of wine and water?

Question 4

How many litres of water should be added to a 20-litre mixture of water and milk in the ratio of 3: 7 such that the resultant mixture has 40% water in it?

Question 5

In an 80 kg mixture, the respective ratio of milk and water is 5:3. How much water should be added to the mixture to make the respective ratio of milk and water 1:1?

Question 6

A mixture of 70 liters of Fruit Juice and water contains 10% water. How many liters of water should be added to the mixture so that the mixture contains 12.5% water?

Question 7

A cane contains a mixture of two liquids A and B in the ratio 7: 5. When 9 liters of mixture are drawn off and the can is filled with B, the ratio of A and B becomes 7: 9. How many liters of liquid A was contained by the cane initially?

Question 8

In an alloy , gold and copper are in the ratio of 3:1. In the second alloy, the same elements are in the ratio of 1:5. Calculate the ratio in which the given two alloys should be mixed to obtain in a new alloy in which gold and copper are in the ratio of 7 : 9?

Question 9

A can contains a mixture of two liquids A and B in the ratio 7:5. When 9 litres of mixture is drained off and the Can is filled with B, the ratio of A and B becomes 7 : 9. How many litres of liquid A was contained by the can initially?

Question 10

In a 60 kg mixture respective ratio of milk and water is 7:5 then what quantity of water should be added to the mixture to make the ratio 5:6?
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Jun 16ESE & GATE EE

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Asha GuptaAsha GuptaMember since Mar 2021
Associate Content Developer - AE/JE Non-technical
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