Question

A hall is 25 m long and 18 m wide. A path 1.5 m wide is constructed around it. Calculate
the cost of cementing it at the rate of Rs 20.50 per square meter.​

Answer 1

Answer:

Length of the hall = 25 cm

Breadth of the hall = 18 cm

A path 1.5 wide is constructed around the hall

Length of the hall including path = 25 + 1.5 +1.5 = 28 cm

Breadth of the hall including path = 18 + 1.5 +1.5 = 21 cm

Total area = 28 x 21 = 588 cm^2

Area of the hall = 25 x 18 = 450 cm^2

Area of the path = Total area - area of the hall = 138 cm^2

Cost of cementing = 138 x 20.50 = Rs. 2,829

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Answer 2

$\huge\bold\red{Hey!}$

Length of the path = 25+1.5=26.5 m

Breadth of the path = 18+1.5= 19.5 m

Area of the path = 26.5 X 19.5 =516.75 m^2

Cost = 516.75 X 20.50 = ₹ 10, 593.375