Question

In a 25 litre mixture of milk and water is 4:1 howmany litres of milk must be added to make the ratio 16:1

Answer 1

$\color {red}\huge\bold\star\underline\mathcal{Question:-}$ We have to find how much milk added ?

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in initial 25 litre mixture , milk was =

$\frac{25 \times 4}{5} = 20 \: litre$

and water was = 25-20 = 5 litre ..

now , Let x litre of milk added and their ratio becomes 16:1 , so water was 5 only ....

A/q,

$\frac{20 + x}{5} = \frac{16}{1} \\ \\ 20 + x = 80 \\ \\ x = 60 \: litre \:$

$\large\red{\boxed{\sf </strong><strong>milk\</strong><strong>:</strong><strong>added\</strong><strong>:</strong><strong>=</strong><strong>6</strong><strong>0</strong><strong>\</strong><strong>:</strong><strong>litre</strong><strong>}}$

Answer 2

Answer:

4x + x = 25 litres

5x = 25 L

x = 25/5 = 5l

amount of milk = 4x

4 * 5 = 20 L

amount of water = x = 5 L

let the amount of milk be added is x

20 L + x / 5 L = 16/1

(cross multiplying)

20 L + x = 80 L

X=80 L - 20 L

= 60 L

Step-by-step explanation: