Identify the total cost of the lorry and the deposit percentage.

Here's a step-by-step solution to the problem.

a) Calculate amount to be paid as deposit.

Step 1: Identify the total cost of the lorry and the deposit percentage.
The total cost of the lorry is 2,800,000 shillings.
The deposit is 60% of the total cost.

Step 2: Calculate the deposit amount.

$$\text{Deposit} = \frac{60}{100} \times 2,800,000$$ $$\text{Deposit} = 0.60 \times 2,800,000$$ $$$$