Question

a tank 20 m long, 12m wide and 8m deep is to be made of iron sheet. it is open at the top. determine the cost of iron sheet, at the rate of rs 12.50 pet metre, if the sheet is 2.5m wide..


please answer as fast as possible

Answer 1

Answer ............. is 4960 rupees

Answer 2

Answer:

The cost of the iron sheet is Rs.4960.

Step-by-step explanation:

Given : A tank 20 m long, 12m wide and 8m deep is to be made of iron sheet. it is open at the top.

To determine : The cost of iron sheet, at the rate of rs 12.50 pet meter, if the sheet is 2.5m wide?

Solution :

A tank measuring l=20 m, b=12 m, h=8 m

Total surface area of the tank is

$A=2(lb+bh+lh)$

$A=2(20(12)+12(8)+20(8))$

$A=2(240+96+160)$

$A=2(496)$

$A=992m^2$

Total surface area of tank is equal to area of iron sheet

$A=L\times B$

$992=L\times 2.5$

$L=396.8$

Rate of iron sheet is Rs.12.50

$\text{Cost of iron sheet} =396.8\times 12.50$

$\text{Cost of iron sheet} =4960$

Therefore, The cost of the iron sheet is Rs.4960.