Level 3
Miki, Natalie and Ollie each had some beads and decided to play a game with their beads.
In round 1, Miki lost 12 of her beads to Natalie.
In round 2, Natalie lost 12 of her total number of beads to Ollie.
In round 3, Ollie lost 12 of her total number of beads to Miki.
In the end, Miki, Natalie and Ollie had 124, 88 and 68 beads respectively. How many beads did Natalie have at first?
5 m
