Lizzy: Lily bought a Russian nesting doll as a souvenir. The biggest doll is 243 cm tall, and each doll is 2/3rd the size of the doll that contains it. How big is the 6th biggest doll?.
Me: Hmmm, let me think. I think this is the detailed solution:
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First find the size of the second - biggest doll: 243 cm * 2 / 3 = 162 cm. Then find the size of the third - biggest doll: 162 cm * 2 / 3 = 108 cm. Then find the size of the fourth - biggest doll: 108 cm * 2 / 3 = 72 cm. Then find the size of the fifth - biggest doll: 72 cm * 2 / 3 = 48 cm. Then find the size of the sixth - biggest doll: 48 cm * 2 / 3 = 32 cm. Final answer: 32.
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