In a room whose floor is a square of side 10 m, an equilateral triangular table of side 2 m is placed. Four book shelves of size 4 m × 1 m × 9 m are also placed in the room. If the half of the rest of the area in the room is to be carpeted at the rate of Rs 100 per square meter, what is the cost of carpeting (approximately)?

• A. Rs. 7600
• B. Rs. 5635
• C. Rs. 4113
• D. Rs. 3200