The cost of the paint is rs.20 per kg. if 1kg of paint covers 15 sq.ft, how much will it cost to paint outside of a cube having 5 feet each side  Options:
A) Rs.200
B) Rs.672
C) Rs.546
D) Rs.876
E) None of these
Explanation:   surface area of a cube= 6 x 5^2 = 150 sq.ft   quantity of paint required=(150/15)= 
<gadget id="calculator">(150/15)</gadget>
<output>10</output>
10 kg   cost of painting= 20 x 10 = Rs.200   Rs.200nswer: Rs.200
<result>A</result>
The cost of the paint is rs.20 per kg. if 1kg of paint covers 15 sq.ft, how much will it cost to paint outside of a cube having 5 feet each side