Question

a closed iron tank 12m long. 9m wide ,4m deep is to be made. determine the cost of iron sheet used at the rate rs. 5 per meter sheet​

Answer 1

Step-by-step explanation:

osisiodjsh nahi tar ti mhanali ki nahi te pach hajar rupayanhoon nahi tar

Answer 2

Correct Question:-

A closed iron tank 12m long, 9m wide, 4m deep is to be made. Determine the cost of iron sheet used at the rate Rs. 5 per m² of sheet.

Given data :-

{ Legth = L; Breadth = B; Depth = D }

• A closed iron tank 12m long, 9m wide, 4m deep.
• Cost of iron sheet used at the rate Rs. 5 per m² of sheet.

Solution:-

Let, 12 m be the length of closed iron tank, 9 m be the breadth of closed iron tank &

4 m be the depth of closed iron tank.

Now, we use formula to find area of a closed iron tank.

—› Area of a closed iron tank

= 2LB + 2LD+ 2DB

—› Area of a closed iron tank

= 2×12×9 + 2×12×4 + 2×4×9

—› Area of a closed iron tank

= 2×12×9 + 2×12×4 + 2×4×9

—› Area of a closed iron tank

= 216 + 96 + 72

—› Area of a closed iron tank

= 384 m²

The cost of iron sheet used at the rate Rs. 5 per m² of sheet.

Hence,

—› Cost of iron sheet

= [Area of a closed iron tank] × [Cost of iron sheet per m²]

—› Cost of iron sheet = 384 × 5

—› Cost of iron sheet = Rs 1920

Hence, the cost of iron sheet

is Rs 1920.