Question

An open box of length $1.5m$, breadth $1m$, and height $1m$ is to be made for use on a trolley for carrying garden waste. How much sheet metal will be required to make this box? The inside and outside surface of the box is to be painted with rust proof paint. At a rate of $150$ rupees per sqm, how much will it cost to paint the box?

Answer 1

Surface Area =2(l*b+b*h+h*l)
Surface Area =2(1.5*1+1*1+1*1.5)
Surface Area =2(1.5+1+1.5)
Surface Area =2*4=8m2 answer
cost of paint the box =8*150=1200rupees