The mass of each gas cylinder is 16 kg 250 g. What is the total mass of 18 such cylinders ?

Answer

To find the total mass of 18 gas cylinders, each weighing 16 kg 250 g, we will follow these steps:

### Step 1: Convert the mass of one cylinder into grams
The mass of one cylinder is given as 16 kg 250 g.
1 kg = 1000 g, so:
- Convert 16 kg to grams:
\( 16 \, \text{kg} = 16 \times 1000 \, \text{g} = 16000 \, \text{g} \)
- Now add the 250 g:
\( 16000 \, \text{g} + 250 \, \text{g} = 16250 \, \text{g} \)

### Step 2: Calculate the total mass of 18 cylinders in grams
Now, we need to find the total mass of 18 cylinders:
- Multiply the mass of one cylinder by the number of cylinders:
\( 16250 \, \text{g} \times 18 \)

### Step 3: Perform the multiplication
Let's calculate:
- \( 16250 \times 18 \)
- Break it down:
- \( 16250 \times 10 = 162500 \)
- \( 16250 \times 8 = 130000 \) (calculated as \( 16250 \times 8 = 130000 \))
- Now add the two results:
\( 162500 + 130000 = 292500 \, \text{g} \)

### Step 4: Convert the total mass back to kg and g
Now, convert 292500 g back to kg:
- Divide by 1000 to convert grams to kilograms:
\( 292500 \, \text{g} = 292.5 \, \text{kg} \)

### Final Result
The total mass of 18 gas cylinders is **292 kg 500 g**.

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