Question
PSLE
Gwen hung some identical rings vertically. The thickness of each ring was 1 cm. The figure shows how the rings are connected.
  1. What was the distance from the top of the 1st ring to the bottom of the 6th ring?
  2. The distance from the top of the 1st ring to the bottom of the last ring was 177 cm. How many rings did Gwen hang altogether?
3 m
(a)

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(b)

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PSLE
Gwen hung some identical rings vertically. The thickness of each ring was 1 cm. The figure shows how the rings are connected.
  1. What was the distance from the top of the 1st ring to the bottom of the 6th ring?
  2. The distance from the top of the 1st ring to the bottom of the last ring was 177 cm. How many rings did Gwen hang altogether?