Iwin £21 on the lottery but give 1/3away how much do i give away

3*7=21, 21-7= 14 and if 1/3 of 21 is seven and you give away 1/3 you are left with 2/3 of 21 and that equals 14

Step-by-step explanation:

amount of oatypop that contains the prize = 40%

amount   of oatypop which doesn't contain the prize = (100-40)=60%

probability that hannah will win a prize

    = s +f s +f f s+ff   f s+ff f f s+ infinity.where f= failure,s= success

=   or 60%

probability that hannah only has to buy 3 or less boxes before getting a prize= (s) and ( f s) and (ff s) and (f f f s)

        = = 87.04 %  

step-by-step explanation: