# The cost of the paint is rs.25 per kg. of 1 kg of paint covers 15 square feet, how much will it cost to paint outside of a cube having 5 feet each side?

2
by chetanprakash7

2015-02-06T13:42:32+05:30

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Side of cube(a)=5 feet
Surface area of cube=6a²=150feet²
paint require for 15 square feet=1kg
paint require for 1 square feet =1/15
paint require for 150 square feet=1/15 x150=10kg
cost of 1kg paint =25Rs
cost of 10kg paint will be=25x10=250 Rs

2015-02-06T14:24:37+05:30

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Outside of the cube = surface area of cube =

a =5 feet

SA of cube = )

=6(25)

=150

Paint for  15 square feet = 1 kg

So paint for 150 square feet = 10 kg

Cost of 1 kg paint = Rs.25

Cost of 10 kg paint = 25 * 10 = Rs.250