Question

The cost of the paint is rs.36.50 per kg. if 1kg of paint covers 16sq.ft, how much will it cost to paint outside of a cube having 8 feet each side
A) Rs.962
B) Rs.672
C) Rs.546
D) Rs.876

Answer 1

Hey.


Here is the answer .


Given :

Cost of paint = ₹ 36.50/ kg

1 kg paint covers 16 ft^2.


Solution :


Side of the cubic wall = 8 ft

So, total outside surface area of the cube wall


= 6 (side)^2

= 6 × 64 sq. ft

= 384 sq. ft

Amount of paint required

= (384/16) kg


So, total cost = ₹ (384/16) × 36.50

= ₹ 24 × 36.50

= ₹ 876.00


So, (D) is the correct choice.

Thanks

Answer 2

Heya....

===== Answer =====

Coat of paint = 36.50/kg
1 kg paint covers = 16 ft ^2

Sol :-

Wall is cubical so... 6(side)^2
6 x 64 = 384

Amount of paint = 384/16

Total cost of paint = 384/16 * 36.50

= 24*36.50 = 876.00 RS ...

Thank you