Question Number 69429 by Learner-123 last updated on 23/Sep/19
Commented by Learner-123 last updated on 23/Sep/19
$${v}_{{a}} =\:\mathrm{162}{km}/{h}\:\left(\nwarrow\right) \\ $$$${v}_{{b}} =\mathrm{144}{km}/{h}\:\left(\searrow\right) \\ $$
Commented by Learner-123 last updated on 26/Sep/19
$$\:{it}'{s}\:{humble}\:{request}\:,\:{please}\:{solve}\:{the} \\ $$$${problem}.{It}'{s}\:{urgent} \\ $$$$. \\ $$