Question
The total mass of Barbara, Nora and Kylie is 40k kg. Barbara has a mass of 4k kg. Nora is 5 kg heavier than Barbara.
  1. What is Kylie's mass in terms of k?
  2. If k = 15, what is Kylie's mass? 
3 m
(a)

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(b)

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The total mass of Barbara, Nora and Kylie is 40k kg. Barbara has a mass of 4k kg. Nora is 5 kg heavier than Barbara.
  1. What is Kylie's mass in terms of k?
  2. If k = 15, what is Kylie's mass?