Question

the scale for each line is labeled below the line.
for each line, you are asked to click in a box at a given weight on the line. when you click in a box, the value you are asked for will appear.
if you decide that the box you clicked on is not the correct weight, click in the box again and the value will disappear. then, click in the box that you think is correct.
click in the box that is at 1 pound on this line:
chart with 0, 1 kg, 2 kg, 3 kg and boxes
click in the box that is at 24 oz on this line:
chart with 0, 1 lb, 2 lb, 3 lb and boxes
click in the box that is at 1 kg on this line:
chart with 0, 1 lb, 2 lb, 3 lb and boxes
click in the box that is at 500 g on this line:
chart with 0, 1 kg, 2 kg, 3 kg and boxes

Explanation:

Step1: Convert 1 lb to kg

We know $1 \text{ lb} \approx 0.454 \text{ kg}$, so this value is between 0 and 1 kg. The first scale has 0, 1 kg, 2 kg, 3 kg. The first box is between 0 and 1 kg, matching 1 lb.

Step2: Convert 24 oz to lb

Since $16 \text{ oz} = 1 \text{ lb}$, $24 \text{ oz} = \frac{24}{16} = 1.5 \text{ lb}$. This is between 1 lb and 2 lb on the second scale, so the third box (between 1 lb and 2 lb) is correct.

Step3: Convert 1 kg to lb

We know $1 \text{ kg} \approx 2.205 \text{ lb}$, which is between 2 lb and 3 lb on the third scale, so the third box (between 2 lb and 3 lb) is correct.

Step4: Convert 500 g to kg

Since $1000 \text{ g} = 1 \text{ kg}$, $500 \text{ g} = 0.5 \text{ kg}$. This is between 0 and 1 kg on the fourth scale, so the first box (between 0 and 1 kg) is correct.

Answer:

1. For 1 pound: Click the first box (leftmost, between 0 and 1 kg)
2. For 24 oz: Click the third box (between 1 lb and 2 lb)
3. For 1 kg: Click the third box (between 2 lb and 3 lb)
4. For 500 g: Click the first box (leftmost, between 0 and 1 kg)