What per cent of 3.5 kg is 70 gms ?

Options

A. 0.03
B. 0.04
C. 0.05
D. 0.02

Answer

To find out what percent of 3.5 kg is 70 grams, we can follow these steps:

### Step 1: Convert kilograms to grams
First, we need to convert 3.5 kg into grams. Since 1 kg is equal to 1000 grams, we can calculate:
\[ 3.5 \text{ kg} = 3.5 \times 1000 \text{ g} = 3500 \text{ g} \]

### Step 2: Set up the percentage equation
Next, we need to find out what percentage 70 grams is of 3500 grams. We can set this up as:
\[ \text{Percentage} = \left( \frac{\text{Part}}{\text{Whole}} \right) \times 100 \]
In this case, the part is 70 grams and the whole is 3500 grams:
\[ \text{Percentage} = \left( \frac{70}{3500} \right) \times 100 \]

### Step 3: Calculate the fraction
Now, we can simplify the fraction:
\[ \frac{70}{3500} = \frac{1}{50} \]

### Step 4: Calculate the percentage
Now, we can calculate the percentage:
\[ \text{Percentage} = \left( \frac{1}{50} \right) \times 100 = 2 \]

### Step 5: Final answer in percentage
Thus, we find that:
\[ \text{Percentage} = 2\% \]

### Conclusion
So, 70 grams is 2% of 3.5 kg.

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