Simple interest on a certain sum is given by `l=(PTR)/(100)`. Make T as the subject of the formula. Find T when P=rs1000, R=10% p.a., and l=rs 300.
A. `T=(100l)/(PR),6` years
B. `T=(100l)/(PR),3` years
C. `T=(100P)/(IR),4` years
D. `T=(100R)/(Pl):5` years.