if english was not compulsory i would not even think of choosing it, not even in my wildest dreams its full of crap that we wont ever need for the future.
there is 1 black jelly bean in each packet so thats 1 over 6 and there are two packets so its just 1/6 x 1/6 which should get you 1/36.(its one 1/6 beacuase we are looking for the prob of the black beans)
i dunno about the speed one is it the square root of 7200?just an educated guess