clc
//initialisation of variables
n2= 10.05*10^-3 //poise
d1= 0.879 //gms cm^-3
t= 88 //sec
d2= 1 //gms cm^-3
t1= 120 //sec
//CALCULATIONS
n1= d1*t/(d2*t1)
//RESULTS
printf (' relative viscosity= %.3f ',n1)