Question

An open water tank 12 m long 9 m wide and 4 m deep is to be made. Determine the cost
of iron sheet required at the rate of 25 per m, if the sheet is 1.5 m wide.​

Answer 1

question:⤵️

An open water tank 12 m long 9 m wide and 4 m deep is to be made. Determine the cost

of iron sheet required at the rate of 25 per m, if the sheet is 1.5 m wide.

ANSWER:⤵️

Cost of iron sheet required to make open tank is ₹4600.

EXPLANATION:⤵️

L=12m ; W=9m ; D=4m

w=1.5m ; r=25 /m ; Length of sheet

required=s

Total sheet required to make open tank A=LSA of cuboid+Area of Bottom of tank

A = [2D(L+W)] + [LxW]

= [2x4(12+9)] + [129]

(8×21) + 108

= 168 + 108

= 276m2

We know that Area=Length * width

Area of sheet = s * w

276 = s x 1.5

..s = 276 / 1.5 = 184m

Length of sheet required = 184m

Cost of sheet = Length of sheet x rate =s×r = 184 × 25 =₹ 4600

Answer 2

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Expert Answer :)

question:⤵️

An open water tank 12 m long 9 m wide and 4 m deep is to be made. Determine the cost

of iron sheet required at the rate of 25 per m, if the sheet is 1.5 m wide.

ANSWER:⤵️

Cost of iron sheet required to make open tank is ₹4600.

EXPLANATION:⤵️

L=12m ; W=9m ; D=4m

w=1.5m ; r=25 /m ; Length of sheet

required=s

Total sheet required to make open tank A=LSA of cuboid+Area of Bottom of tank

A = [2D(L+W)] + [LxW]

= [2x4(12+9)] + [129]

(8×21) + 108

= 168 + 108

= 276m2

We know that Area=Length * width

Area of sheet = s * w

276 = s x 1.5

..s = 276 / 1.5 = 184m

Length of sheet required = 184m

Cost of sheet = Length of sheet x rate =s×r = 184 × 25 =₹ 4600

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