If a sheet measuring 1 m² costs Rs 25. The cost of sheet required for making a cubical box of edge 2.5 m is

Rs 755.50

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Rs 937.50

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Rs 945.50

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Rs 1037.50

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Solution

The correct option is B
Rs 937.50

Given: Edge (a) =2.5 m

Surface area of a cube = 6a²

= 6(2.5)² m²

Cost of 1 m² of sheet = Rs 25

Therefore, cost of 6(2.5)² m²of sheet = Rs {25×6(2.5)²}

= Rs 937.50

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If a sheet measuring 1 m2 costs Rs 25. The cost of sheet required for making a cubical box of edge 2.5 m is

The correct option is B Rs 937.50Given: Edge (a) =2.5 m Surface area of a cube = 6a2 = 6(2.5)2 m2 Cost of 1 m2 of sheet = Rs 25 Therefore, cost of 6(2.5)2 m2 of sheet = Rs {25×6(2.5)2} = Rs 937.50

If a sheet measuring 1 m² costs Rs 25. The cost of sheet required for making a cubical box of edge 2.5 m is

The correct option is B
Rs 937.50

Given: Edge (a) =2.5 m

Surface area of a cube = 6a²

= 6(2.5)² m²

Cost of 1 m² of sheet = Rs 25

Therefore, cost of 6(2.5)² m²of sheet = Rs {25×6(2.5)²}

= Rs 937.50