a) A rectangular ground of length 60 m and breadth 45 m has road of 5 m wide which runs around outside the ground. If a squared slab of length 50 cm and the cost of the each slab is Rs. 65, calculate the cost for the slab needed to cover the path.
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Cost = Rs. 299000
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Area of rectangular ground is 60×45 =2700m²
If we include road in ground the new length is 60+5+5=70m
New breadth include road = 45+5+5=55m
Area of ground include road = 70 ×55 = 3850m²
Area of road = 3850-2700=1150m²
Area of square slab = 50×50=2500cm²=0.25m²
Slabs required = 1150÷0.25=460
Total cost = 460 × 65 = 29900
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