Milk contains 5% water. What quantity of pure milk should be added to 10 litres of milk to reduce this to 2%

1.  5 litres

2.  7 litres

3.  15 litres

4.  Cannot be determined

5.  None of these

View Answer  
5
Correct Answer :

15 litres


Explanation :
No Explanation available for this question

The quantity of water (in ml) needed to reduce 9 ml shaving lotion containing 50% alcohol to a lotion containing 30% alcohol, is :

1.  4

2.  5

3.  6

4.  7

View Answer  
4
Correct Answer :

6


Explanation :
No Explanation available for this question

To a sugar solution of 3 litres containing 40% sugar, one litre of water is added. The percentage of sugar in the new solution is;

1.  

2.  15%

3.  30%

4.  33%

View Answer  
4
Correct Answer :

30\%


Explanation :
No Explanation available for this question

One type of liquid contains 20% water and the second type of liquid contains 35% of water. A glass is filled with 10 parts of first liquid and 4 parts of second liquid. The percentage of water in the new mixture in the glass is:

1.  20%

2.  

3.  37%

4.  40%

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

In some quantity of ghee, 60% is pure ghee and 40% is vanaspati. If 10 kg of pure ghee is added, then the strength of vanaspati ghee becomes 20%. The original quantity was:

1.  10 kg

2.  15 kg

3.  20 kg

4.  25 kg

View Answer  
4
Correct Answer :

10 kg


Explanation :
No Explanation available for this question

The weight of the container alone is 25% of the container filled with a certain fluid. When some fluid is removed, the weight of the container and remaining fluid is 50% of the original total weight. What fractional part of the liquid has been removed

1.  1/3

2.  1/2

3.  2/3

4.  3/4

View Answer  
4
Correct Answer :

2/3


Explanation :
No Explanation available for this question

From a container having pure milk, 20% is replaced by water and the process is repeated thrice. At the end of the third operation, the milk is:

1.  40% pure

2.  50% pure

3.  51.2% pure

4.  58.8% pure

View Answer  
4
Correct Answer :

51.2\% pure


Explanation :
No Explanation available for this question

An empty fuel tank of a car was filled with A type petrol. When the was half-empty, it was filled with B type petrol. Again when the tank was half-empty, it was filled with A type petrol. When the tank was half-empty again, it was filled with B type petrol. What is the percentage of A type petrol at present in the tank

1.  33.5%

2.  37.5%

3.  40%

4.  50%

View Answer  
4
Correct Answer :

37.5\%


Explanation :
No Explanation available for this question

A bag contains 600 coins of 25 p denomination and 1200 coins of 50 p denomination. If 12% of 25 p coins and 24% of 50 p coins are removed, the percentage of money removed from the bag is nearly:

1.  15.6 %

2.  17.8%

3.  21.6%

4.  30%

View Answer  
4
Correct Answer :

21.6\%


Explanation :
No Explanation available for this question

The price of rice is reduced by 2%. How many kilograms of rice can now be bought for the money which was sufficient to buy 49 kg of rice earlier

1.  48 kg

2.  49 kg

3.  50 kg

4.  51 kg

View Answer  
4
Correct Answer :

50 kg


Explanation :
No Explanation available for this question
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