A mixture contains alcohol and water in the ratio 4 : 3. If 5 litres of water is added to the mixture, the ratio becomes 4: 5. Find the quantity of alcohol in the given mixture.

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Solution

The correct option is C
10

Let the quantity of alcohol and water be 4x litres and 3x litres respectively.

20x = 4(3x+5)

8x = 20

x = 2.5

Quantity of alcohol = $(4 \times 2.5)$ litres = 10 litres.

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A mixture contains alcohol and water in the ratio 4 : 3. If 5 litres of water is added to the mixture, the ratio becomes 4: 5. Find the quantity of alcohol in the given mixture.

The correct option is C 10 Let the quantity of alcohol and water be 4x litres and 3x litres respectively. 20x = 4(3x+5) 8x = 20 x = 2.5 Quantity of alcohol = (4×2.5) litres = 10 litres.

The correct option is C
10

Let the quantity of alcohol and water be 4x litres and 3x litres respectively.

20x = 4(3x+5)

8x = 20

x = 2.5

Quantity of alcohol = $(4 \times 2.5)$ litres = 10 litres.