Question

anwer this pls .........,.,.,.......

Answer 1

See the solution...........

Answer 2

Let the ratio be 4x,3x& 2x
Now
TSA=2(lh+bh+lh)
=2(4*3+3*2+4*2)
=2(12+6+8)
=12(26)
=52x


Cost for per m^2=52*12
13.59sqm^2=52*13.59
1248=52x(13.50-12)
1248=52x*1.5
$x = \frac{1248 \times 10}{52 \times 1.5} = 16$
First ratio=4x=4*16=64
Second ratio=3x=3*16=48
Third ratio=2x=2*16=32