Question

A verandah 2.50 m wide is constructed all
along the outside of a room 7.5 m long and 6
m wide. Find the cost of cementing the floor
of this verandah at the rate of 15 per sq. m.​

Answer 1

Answer:
Rs 1387.50

Step-by-step explanation:
Find the dimension of the room with the verandah:
Length = 7.5 + 2.5 + 2.5 = 12.5 m
Breadth = 6 + 2.5 + 2.5 = 11 m

Find the area of of the room with the verandah:
Area = Length x Breadth
Area = 12.5 x 11 = 137.5 m²

Find the area of the room:
Area = Length x Breadth
Area = 7.5 x 6 = 45 m²

Find the area of the verandah:
Area = 137.5 - 45 = 92.5 m²

Find the cost:
1 m² = Rs 15
92.5 m² = 15 x 92.5 = Rs 1387.50

Answer: The cost is Rs 1387.50

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