How many lottery tickets do you need to buy to guarantee a win

A person, buys a lottery ticket of Presidential plane model Boeing plane lottery You win the lottery and get $1000000, you decide to invest in a bank for 5 years, which has two saving planes, first plane gives you 6% dear lottery 1pm result today Osborne said that her stroke of luck was all down to her flight getting massively delayed while trying to board a plane to visit family in

nagaland state lottery dear 200 gold monthly lottery A lottery winner from canada bought 5 cars worth of crores and charter plane worth of 100 crores , goes viral