How can be prepare 5 ltr of 30 percent alcohol from rectified spirit and alcohol?

* First, we need to determine how much rectified spirit and alcohol we need to use to prepare 5 L of 30% alcohol.

* Let's assume we have x L of rectified spirit and y L of alcohol.

* According to the given information, we can write the following equation:

```

0.30 = (x * 95% + y * 100%) / 5

```

* Simplifying the equation, we get:

```

1.5 = 0.95x + y

```

* Rearranging the equation, we get:

```

y = 1.5 - 0.95x

```

Step 2: Substituting values and calculating the amounts.

* Now, we can substitute different values of x to find the corresponding values of y.

* Here are a few possible combinations:

| x (L) - Rectified Spirit | y (L) - Alcohol |

|---|---|

| 3.0 | 1.5 |

| 2.5 | 2.0 |

| 2.0 | 2.5 |

| 1.5 | 3.0 |

* Based on your preference, you can choose any of these combinations to prepare 5 L of 30% alcohol.

Step 3: Mixing the rectified spirit and alcohol.

* Once you have determined the amounts of rectified spirit and alcohol needed, mix them thoroughly in a container.

* Stir the mixture well to ensure a uniform solution.

Step 4: Labeling and storage.

* Label the container clearly, indicating the contents and the percentage of alcohol.

* Store the prepared 30% alcohol in a cool and dry place, away from direct sunlight.