a,Ta có: rA+rU+rG+rX=100%
rA:rU:rG:rX=1:2:3:4=>%rA=10%;%rU=20%;%rG=30%;%rX=40%
=>%A=%T=(%rA+%rU):2=15%
=>%G=%X=(%rG+%rX):2=35%
b,A=T=15%*2700=405(Nu)
G=X=35%*2700=945(Nu)
=>lk H2=2A+3G=3645LK
c,rN=2700:2=1350(Nu)
rA=10%rN=135(Nu)
rU=20%rN=270(Nu)
rG=30%rN=405(Nu)
rX=40%rN=540(Nu)
2A + 3G = 2700
A/G = (1+2) / (3 + 4) = 3/7
-> A = T = 300 nu, G = X = 700 nu
a.
N = 2A + 3G = 2000 nu
%A = %T = 15%
%G = %X = 35%
b.
L = (2000 : 2) . 3,4 = 340 Ao
c.
rA = 100
rU = 200
rG = 300
rX = 400