Question 11
Alexia has several marbles and her friend, Cristina, has none. Each day of one week, starting on Monday, Alexia gave Cristina some of her marbles, so that each day Alexia gave more marbles than the day before. On Monday Alexia gave five times less marbles than on Friday, on Tuesday she gave six times less marbles than on Saturday, and on Wednesday she gave seven times less marbles than on Sunday. At the end of that week, Cristina got 72 marbles. Find how many marbles got Cristina Thursday.
Lucian Dragomir
Lucian Dragomir