21) A verandah of width 3m is constructed all along outside of a room of dimensions
4m x 3 m. Find a) Area of the verandah
b) cost of cementing the floor of verandah at the rate of 250 per sq.m
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Answer:
Step-by-step explanation:
Area of verandah = 4×3 = 12 m²
cost of cementing per sq.m = Rs 250
cost of cementing 12 m² = 250 × 12
= Rs 3000
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