The plastic box 2m long 1.5m wide & 40 cm deep is to be made ignoring the thickness of the plastic sheet determine
Answers
Answer:
i) The area of the sheet required for making the box is 5.45 meter square.
ii) The cost of sheet is Rs. 113.447.
Step-by-step explanation:
Given : A plastic box 1.5 m long, 1.25 m wide and 65 cm deep is to be made. It is opened at the top. Ignoring the thickness of the plastic sheet.
To find :
(i) The area of the sheet required for making the box.
(ii) The cost of sheet for it, if a sheet measuring 7m×3.5m costsर 510.
Solution :
i) The dimension of the box is
Length l= 1.5 m
Breadth b= 1.25 m
Height h= 65 cm = 0.65 m
Area of the sheet required is
A=2lb+2bh+2lhA=2lb+2bh+2lh
A=2(1.5)(1.25)+2(1.25)(0.65)+2(1.5)(0.65)A=2(1.5)(1.25)+2(1.25)(0.65)+2(1.5)(0.65)
A=1.95+1.625+1.875A=1.95+1.625+1.875
A=5.45m^2A=5.45m
2
The area of the sheet required for making the box is 5.45 meter square.
ii) The cost of sheet for it, if a sheet measuring 7m×3.5m costsर 510.
i.e, area of sheet 24.5 meter square cost Rs.510
So, 1 meter square cost \frac{510}{24.5}=20.816
24.5
510
=20.816
Now, The cost of 5.45 meter square cost
20.816\times 5.45=113.44720.816×5.45=113.447
Therefore, The cost of sheet is Rs. 113.447
Answer:
A plastic box 1.5 m long
Step-by-step explanation:
1.25 m wide and 65 cm deep, is to be made. It is to be open at the top. Ignoring the thickness of the plastic sheet, determine: