Let’s simplify the answer: if one and a half hens lay an egg in 18 hours, how many eggs will 6 hens lay in 6 days? So 18/3=6, and 6x2=12. One hen can lay an egg in 12 hours. Which means a hen can lay 2 eggs in one day. 2x6=12. So 6 hens can lay 12 eggs in one day. 12x6=72. In 6 days, 6 hens can lay 72 eggs
I am not sure if I am correct. I think that the angles did not help to solve the problem, ( it makes an obtuse angle) and the unit rate is 421 mph and 384 mph.
2*421+384*2= 1610 miles or 2 (421+384)= 1610 miles