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Alligation or Mixture problems

Alligation or Mixture problems
In what proportion water must be added to spirit to gain 20% by selling it at the cost price?

1:6
1:5
1:7
1:8

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Alligation or Mixture problems
6 liters of milk and water mixture has 75% milk in it. How much milk should be added to the mixture to make it 90% pure?

12 liters
10 liters
8 liters
9 liters

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

The given solution has 75% milk. Milk to be added has 100% milk. Milk should be added to the given mixture in the ratio 15 : 10 or 3 : 2 Quantity of milk to be added = (3 / 2) × 6 = 9 liters.

Alligation or Mixture problems
Three boxes of capacity 24 kg, 36 kg and 84 kg are completely filled with three varieties of wheat A, B and C respectively. All the three boxes were emptied and the three types of wheat were thoroughly mixed and the mixture was put back in the three boxes. How many kg of type A wheat would be there in the third box (in kg)?

14
10
16
12

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Alligation or Mixture problems
A mixture of 20 kg of spirit and water contains 10 % water. How much water must be added to this mixture to raise the percentage of water to 25 %?

8 kg
4 kg
5 kg
30 kg

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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
12
9

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
A sum of Rs. 41 was divided among 50 boys and girls. Each boy gets 90 paise and a girl 65 paise. The number of boys is ?

16
14
34
36

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