Answer:
R and S are the only parallels
Step-by-step explanation:
r and s
they will never intersect
LCM of 20 and 25 is 300
HCF of 20 and 25 is 5
X=2
30
60/40=3/2
105/40+x = 3/2
105/70=3/2
x=70-40 = 30