the circulation for magazine p in 1961 was 4 times the average ( arithmetic mean ) yearly circulation for magazine p for the years 1962 - 1970 . what is the ratio of the circulation in 1961 to the total circulation during 1961 - 1970 for magazine p ?
n0 = 1961.0
n1 = 4.0
n2 = 1962.0
n3 = 1970.0
n4 = 1961.0
n5 = 1961.0
n6 = 1970.0
t0 = n3 - n2
t1 = t0 + 1.0
t2 = n1 + t1
t3 = t2 + 1.0
answer = n1 / t3
print(answer)