A rectangular swimming pool has a length of 12 m, a width of 6 m, and a depth of 2 m. The pool is to be painted (bottom floor and the four walls). If the cost of painting per square meter is Rs. 25, what would be the total cost incurred in painting the pool?

The bottom part of the pool has a length of 12 m and the width of 6 m . So the area of the bottom ground = 12*6 = 72 m square.

Now, the pool has 2 opposite rectangular walls with the length of 12 m and the depth/width = 2 m so the area = 2*12*2 = 48 m square.

Further, it has another 2 opposite rectangular walls with length of 6 m and depth/width of 2 m so the area = 2*6*2 = 24 m square.

So, the total area to be painted = 72 + 48 + 24 = 144 m square.

Cost of painting = 144*25 = Rs. 3600