A sweet seller placed an order for making cardboard boxes of two sizes, namely `(25cm xx 20 cm xx 5 cm) and (15 cm xx 12 cm xx 5 cm)`. If 5% of the total surface area is required extra for all overlaps and the cost of the cardboard is Rs 5 for `1000 cm^(2)`, find the cost of cardboard required for 200 boxes of each kind.

Explanation

To solve the problem, we need to calculate the total surface area of both types of boxes, add 5% for overlaps, and then find the cost of the cardboard required for 200 boxes of each type.

### Step-by-Step Solution:

**Step 1: Calculate the surface area of the first box (25 cm x 20 cm x 5 cm)**

The formula for the surface area (SA) of a rectangular box is:
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