3. Mrs Chua poured \( 8 \ell \) of oil into some bottles. Each bottle contained \( \frac{4}{5} \ell \) of oil. How many bottles of oil did Mrs Chua have?

To determine how many bottles Mrs. Chua used to store her oil, follow these steps: **Given:** - Total oil poured = \( 8 \) liters - Oil per bottle = \( \frac{4}{5} \) liters **Step 1: Understand the Problem** We need to find out how many bottles are required to hold \( 8 \) liters of oil when each bottle holds \( \frac{4}{5} \) liters. **Step 2: Set Up the Calculation** The number of bottles needed can be found by dividing the total amount of oil by the amount each bottle can hold. \[ \text{Number of bottles} = \frac{\text{Total oil}}{\text{Oil per bottle}} = \frac{8}{\frac{4}{5}} \] **Step 3: Perform the Division** Dividing by a fraction is the same as multiplying by its reciprocal. \[ \frac{8}{\frac{4}{5}} = 8 \times \frac{5}{4} = \frac{40}{4} = 10 \] **Answer:** Mrs. Chua used **10 bottles** to store the \( 8 \) liters of oil.