Question

the cost of paint is 60 per KG 1 kilogram paint cover 20 square metre how much will it cost to paint the outer surface of a cube having each side 10 ​

Answer 1

Answer:

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