The volume of a cuboidal block if silver is 10368 cm(cube). If its dimensions are in the ratio 3:2:1. Find the cost of gold polishing its entire surface area at ₹0.50 per cm(square).

10368=3x*2x*1x
10368=6x(cube)
10368/6=x(cube)
1728=x(cube)
cube root of 1728=x
12=x
3*12=36
2*12=24
1*12=12

Surface area of cuboid = 2(lb+bh+hl)
=2(864+288+432)
=2*1584
=3168cm(square)

Area of gold polishing = 0.50*3168
​=Rs 1584.

surface area is 3167 cm square