P. K. R. Warrier was born in 1921.
P. K. R. Warrier died in 2011.
R. K. Narayan was born on October 10, 1906.
K. P. R. Gopalan died in 1997.
P=q/r* * * * *The correct answer is P = k*q/r where k is the constant of proportionality.
C. R. Pattabhiraman was born on 1906-11-11.
R. K. Srikantan was born in 1920.
R. K. Sinha was born in 1917.
R. K. Harrison was born in 1920.
K. R. Malkani was born in 1921.
R. K. Gordon was born in 1887.
R K Joshi was born in 1936.
R. K. Johnson was born in 1910.