Question
Yen places 4 bags an equal distance from one another. The distance between the first bag and the fourth bag is 150 cm. If Yen adds another 11 bags that are equal distance apart,
  1. How many gaps will there be between the eleventh bag and the fifteenth bag?
  2. What is the distance between the 11th bag and the 15th bag?
4 m
(a)

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(b)

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Yen places 4 bags an equal distance from one another. The distance between the first bag and the fourth bag is 150 cm. If Yen adds another 11 bags that are equal distance apart,
  1. How many gaps will there be between the eleventh bag and the fifteenth bag?
  2. What is the distance between the 11th bag and the 15th bag?