Alesia , mama si bunica ei au primit , in total , 221 de martisoare . Alesia a primit de trei ori mai putine martisoare decat ama sa , insa de trei ori mai multe decat bunica. Afla cate martisoare a primit fiecare.
Alesia, her mother and grandmother received a total of 221 marshmallows. Alesia received three times less marshmallows than his mother, but three times more than his grandmother. Find out how many marshmallows each received.
Let x--------------------> number of marshmallows received for Alexia y--------------------> number of marshmallows received for the mother y--------------------> number of marshmallows received for the grandmother we know that
x+y+z=221 x=y/3----> Alesia received three times less than his mother-----> y=3x x=3z----> Alesia received three times more than his grandmother---> z=x/3 x+y+z=221-------> x+(3x)+(x/3)=221 4x+(x/3)=221--------> (12x+x)/3=221-----> 13x= 663 x=663/13=51 y=3x----> 3*51=153 z=x/3----> 51/3=17
the answer is Alexia received 51 marshmallows the mother received 153 marshmallows the grandmother received 17 marshmallows
the answer in Romanian
lăsa x--------------------> numărul de martisoare primit pentru Alexia y--------------------> numărul de martisoare primite pentru mama y--------------------> numărul de martisoare primite pentru bunica
