r+p+z = 839

p/z = 4/3
r/2 + p/2 + z = 502
solve for r.

4 answers

r = 333
Please explain how you got that
AAAaannndd the bot gets it wrong yet again!

r+p+z = 839
p/z = 4/3
r/2 + p/2 + z = 502

double the 3rd equation and you have
r+p+z = 839
r+p+2z = 1004

subtract to get z = 165
p = 4/3 so z = 220
r+220+165 = 839 so r = 454
This is extremely irritating..