Six X ' s have to be placed in thesquares of the figure below, such that each rowcontains atleast one X. In how many different wayscan this be done?

Six X 's have to be placed in the squares of the figure below, such that each row contains atleast one X. in how many different ways can this be done?

Six X 's have to be placed in the squares of the figure below, such that each row contains atleast one X. in how many different ways can this be done?

Six X 's have to be placed in the squares of the figure below, such that each row contains atleast one X. in how many different ways can this be done?

Six X 's have to be placed in the squares of the figure below, such that each row contains atleast one X. in how many different ways can this be done?

Six X's have to be placed in the squares of the figure below, such that each row contains atleast one X, this can be done in

Six X's are to be placed in boxes of the figure such that each row contains at least one X , In how many different ways can this be done?

Six X ' s have to be placed in the squares of the figure given below such that each row contains at least one X . Th number of ways in which this can be done is :