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Alligation or Mixture problems

Alligation or Mixture problems
80 litre mixture of milk and water contains 10% milk. How much milk (in litres) must be added to make water percentage in the mixture as 80%?

9
10
12
8

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let initial quantity be Q, and final quantity be F F = Q(1 - 8/Q) 4 => Q = 20

Alligation or Mixture problems
Two vessels A and B contains milk and water mixed in the ratio 5 : 3 and 2 : 3. When these mixtures are mixed to form a new mixture containing half milk and half water, they must be taken in the ratio ?

7 : 3
2 : 5
4 : 5
3 : 5

ANSWER DOWNLOAD EXAMIANS APP

Alligation or Mixture problems
A dishonest milkman professes to sell his milk at C. P. But he mixes it with water and thereby gains 25 %. The % of water in the mixture is ?

None of these
4%
20%
25%

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Alligation or Mixture problems
A grocer buys two kind of rice at Rs. 1·80 and Rs. 1·20 per kg respectively. In what proportion should these be mixed, so that by selling the mixture at Rs. 1·75 per kg, 25 % may be gained?

3 : 4
1 : 2
2 : 1
3 : 2

ANSWER DOWNLOAD EXAMIANS APP

Alligation or Mixture problems
In the 75 litres of mixture of milk and water, the ratio of milk and water is 4:1. The quantity of water required to make the ratio of milk and water 3:1 is

5 litres
3 litres
1 litre
4 litres

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Total quantity of mixture = 75 litre Milk  :  Water  =  4  :  1                                    3       :       1

Alligation or Mixture problems
In a mixture of milk and water the proportion of water by weight was 75%. If in 60 gm of mixture 15 gm water was added, what would be the percentage of water? (Weight in gm)

75%
70%
80%
62%

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Water in 60 gm mixture=60 x 75/100 = 45 gm. and Milk = 15 gm.   After adding 15 gm. of water in mixture, total water = 45 + 15 = 60 gm and weight of a mixture = 60 + 15 = 75 gm.   So % of water = 100 x 60/75 = 80%.

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