Question

A dance hall 11.8m long and 4 m wide is surrounded by 0.75 m wide verandah all around. Calculate the cost of cementing the floor of the verandhah at rupees 95 per m.​

Answer 1

Answer:

2465.25 rupees

Step-by-step explanation:

length, l = 11.8 m

breadth, b = 4 m

width of the verandah, k = 0.75 m

Now,

area of hall = l × b = 11.8 × 4 = 47.2 sq. m

Now,

length after including verandah = l + 2×k = 13.3 m

breadth after including verandah = b + 2×k = 5.5m

so, area including verandah = 13.3 × 5.5

= 73.15 sq. m

so area of verandah = 73.15 - 47.2 = 25.95 sq. m

total cost = 95 × 25.95 = 2465.25 rupees

Answer provided by GauthMath.