Question

a tank open at the top of is made up of iron sheet 4 metres wide if the dimensions of the tank are 12m*8m*6m, find the cost of iron sheet at rupees 17.50 per metre​

Answer 1

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• Length of the tank, l = 12 m 
• Breadth of the tank, b = 8m 
• Height of the tank, h = 6 m 

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Lateral surface area of tank = 2×(l + b)×h = 2×(12 + 8)×6 m² = 240 m²

Area of the Base = l×b = 12×8 m² = 96 m²

Total Surface Area of the open tank = (240 + 96) = 336 m² = Area of the iron sheet required = A 

Width of the iron sheet, W = 4 m 

Length of iron sheet required = A / W = 336 / 4 m = 84 m 

Cost of iron sheet per meter = Rs17.50 

Cost of 84 m of iron sheet = Rs 17.50 × 84 = Rs 1470.

$\therefore$ Cost of iron sheet is Rs 1470.

Answer 2

super question very good