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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%?

10
8
9
12

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
2/3 of a milk-water mixture was milk. There was 21 lit of the mixture. If 4 lit of water is added to it, the % of milk in the new mixture will be:

44
14
56
11

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the amount of juice and water in original mixture '4x' litre and '3x' litre respectively. According to given data, 4x/3x+6 =8/7 28x=24x+48 28x?24x=48 4x = 48 x = 12 Amount of juice = 4x = 4×12 = 48 litre.

Alligation or Mixture problems
How much pepsi at Rs.6 a litre is added to 15 litre of 'dew' at Rs. 10 a litre so that the price of the mixture be Rs.9 a litre?

5
None of these
8
10

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let x litre pepsi is required.     (10-9)=1           :                3=(9-6)   Therefore  in 1:3 one part = 5    =>  x= 5 litres

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 ?

4%
20%
25%
None of these

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Alligation or Mixture problems
How much chicory at Rs. 24 a kg should be added to 15 kg of tea at Rs. 60 a kg as to make the mixture worth Rs. 39 a kg?

21 kg
18 kg
27 kg
20 kg

ANSWER DOWNLOAD EXAMIANS APP

Alligation or Mixture problems
A man buys milk at Rs. 5 a litre and mixes it with water. By selling the mixture at Rs. 4 a litre he gains 121/2 % on his outlay. How much water did each litre of the mixture contain?

None of these
13 litre 45
32 litre 45
32 litre 13

ANSWER DOWNLOAD EXAMIANS APP
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