Answered

a box contain2900 solid coloure marablesthat are either orange,blueor green if 29 percent ofmarableare orangeand 29 percentmarables areblue what percent are green?

Answer :

so out of 2900 marble we have 29 % orange marble and 29% blue marbles

so total orange marbles is 2900 x 29 / 100 = 842 orange marbles

and similarly we have 841 blue marbles 

so total green marbles is 2900 - 2(841) = 1218 

so % green = 1218/2900 x 100 = 42 % 

                                       OR
 

simple method

total 

100 % marbles we have a 29% orange and blue marbles

so total percent of blue and orange marbles is 29 % + 29 % = 58 %

so total  % green marbles = 100 % - 58 % = 42  %

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