how many kg of rice at rs . 6.60 per kg . be mixed with 56 kg of rice at rs . 9.60 per kg to get a mixture worth rs . 8.20 per kg
n0 = 6.6
n1 = 56.0
n2 = 9.6
n3 = 8.2
t0 = n1 * n2
t1 = n1 * n3
t2 = n3 - n0
t3 = t0 - t1
answer = t3 / t2
print(answer)