Question

Maria wants to make an opan cuboidal box ,10 cm long , 5 cm wide and 3 cm high from a cardboard . find to cost of the cardboard at the rate of 50 pasia per centimetre square

Answer 1

surface area of cuboid = 2 (lb+bh+hl)
=2(10×5+5×3+3×10 )
=2 (50+15+30 )
=(95)×2
=190cm^2
it's cost 50 pasie per cm^2
1cm^2 =50
190cm^2 =50 ×190=9500

Answer 2

Length=10cm
Breadth=5cm
Height=3cm
TSA of cuboid=2(lb+bh+hl)
=2(10*5+5*3+3*10)
=2(50+15+30)
= 2*95
=190centimeter square
Cost of 1 centimeter square=50paise
cost of 190 cm square =190*50
=9500paise
=95 rupees