Which distribution has a mean of 5? poisson with λ = 25 binomial with n = 200, π = .05 hypergeometric with n = 100, n = 10, s = 50?

Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance