Cleo and Ignacio placed 30 of their marbles in a jar on a Monday. They took 3/5 of the marbles from the jar the next day and divided them equally. On the third day, Cleo took 1/2 of the marbles remaining in the jars. How many marbles did Cleo have on the third day?
How many marbles did Cleo and Ignacio take from the jar on the first day? ** On the first day, Cleo and Ignacio took 3/5 * 30 marbles = <<3/5*30=18>>18 marbles from the jar
How many marbles did Cleo and Ignacio each get? ** When they shared the marbles, each got 18 marbles / 2 people = <<18/2=9>>9 marbles/person
How many marbles were remaining in the jar after the first day? ** The total number of marbles remaining in the jar is 30 marbles - 18 marbles = <<30-18=12>>12 marbles
How many marbles did Cleo take from the jar on the third day? ** On the third day, Cleo took 1/2 * 12 marbles = <<1/2*12=6>>6 marbles from the jar.
How many marbles did Cleo have on the third day? ** The total number of marbles she has on the third day is 6 marbles + 9 marbles = <<6+9=15>>15 marbles.
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