In Indus valley Civilisation (about 3000 BC), the bricks used for construction work were having dimensions in the ratio

Options

A. `1 : 3 : 4`
B. `4 : 2 : 1`
C. `4 : 4 : 1`
D. `4 : 3 : 2`

Explanation

To solve the problem regarding the dimensions of bricks used in the Indus Valley Civilization, we will express the dimensions in terms of a variable and confirm the ratio provided.

### Step-by-Step Solution:

1. **Understand the Ratio**: The problem states that the dimensions of the bricks are in the ratio of 4:2:1. This means that if we let the height of the brick be represented by a variable, we can express the other dimensions in terms of this variable.

2. **Assign Variables**:
- Let the height of the brick be \( x \).
- According to the ratio, the breadth will be \( 2x \) (since it corresponds to the '2' in the ratio).
- The length will be \( 4x \) (since it corresponds to the '4' in the ratio).

3. **Express the Dimensions**:
- Height = \( x \)
- Breadth = \( 2x \)
- Length = \( 4x \)

4. **Conclusion**: The dimensions of the bricks can be summarized as:
- Height = \( x \)
- Breadth = \( 2x \)
- Length = \( 4x \)

Thus, the dimensions of the bricks used in the Indus Valley Civilization can be represented as \( x : 2x : 4x \), confirming the ratio of 4:2:1.