no 2,3&4 #mohon bantuannya :)

4. p:l:t =6:5:4
Lp = 33.300
Lp = 2 (pl.pt.lt)
33300=2(6x.5x+6x.4x+5x.4x)
16650 = 30x²+24x²+20x²
16650 = 74x²
225 = x²
15 =x²
p= 6x ~ 6.15= 90
l = 5x~ 5.15 = 75
t = 4 x = 4.15= 60.