Volume Units: Simple addition

To solve this problem, we will convert the 160 milliliters to liters and then add this converted amount to 8.24 liters.

• First, we convert 160 milliliters to liters. Knowing that $1 \text{ liter} = 1000 \text{ milliliters}$, we perform the calculation:
$\frac{160 \text{ ml}}{1000} = 0.16 \text{ liters}$
• Next, we add the converted volume to the initial 8.24 liters:
$\text{Total volume in liters} = 8.24 \text{ liters} + 0.16 \text{ liters}$
• This gives us:
$\text{Total volume} = 8.40 \text{ liters}$

Thus, the final volume is $8.4 \, \text{liters}$.

Therefore, the solution to the problem is $8.4 \, \text{l}$, which matches choice 2.

To tackle this problem, we'll follow these solutions steps:

• Step 1: Convert $7250 \, \text{dm}^3$ to liters. Since $1 \, \text{dm}^3$ is equivalent to $1 \, \text{liter}$, we have:

$7250 \, \text{dm}^3 = 7250 \, \text{liters}$.

• Step 2: Convert $2500 \, \text{ml}$ to liters. Knowing that $1 \, \text{ml} = 0.001 \, \text{liter}$, we calculate:

$2500 \, \text{ml} = 2500 \times 0.001 \, \text{liters} = 2.5 \, \text{liters}$.

• Step 3: Add both quantities, remembering they are now both in liters:

$7250 \, \text{liters} + 2.5 \, \text{liters} = 7252.5 \, \text{liters}$.

Hence, the total volume is $\boxed{7252.5 \, \text{liters}}$.

In checking choices, the correct answer is $7252.5 \, \text{liters}$, which corresponds to choice 2.