Khumalo is capital is 1650000 His capital is 12% ,NB he increased his capital with 150000 Solve it

The initial capital is 1,650,000.
The capital is increased by 150,000.

$$\text{New Capital} = \text{Initial Capital} + \text{Capital Increase}$$ $$\text{New Capital} = 1,650,000 + 150,000$$ $$\text{New Capital} = 1,800,000$$

$$\text{Interest on Initial Capital} = \text{Initial Capital} \times \text{Rate}$$ $$\text{Interest on Initial Capital} = 1,650,000 \times 0.12$$ $$\text{Interest on Initial Capital} = 198,000$$

$$\text{Interest on New Capital} = \text{New Capital} \times \text{Rate}$$ $$\text{Interest on New Capital} = 1,800,000 \times 0.12$$ $$\text{Interest on New Capital} = 216,000$$

Based on the information provided, here are the calculations:

• The new capital after the increase is $\boxed{\text{1,800,000}}$.
• The interest on the initial capital at $12\%$ is $\boxed{\text{198,000}}$.
• The interest on the new capital at $12\%$ is $\boxed{\text{216,000}}$.