Question 939795
Two children had 110 marbles between them. After one child had lost half her marbles and the other lost 20, they both had the same amount of marbles. How many marbles did each start with and how much did they end up with?
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let x=number of marbles 1st child started with.
110-x=number of marbles 2nd child started with.
..
x/2=110-x-20=90-x
x=180-2x
3x=180
x=60
110-x=50
number of marbles 1st child started with=60
number of marbles 2nd child started with=50
number of marbles both children ended with=30