Question
The total mass of Pamela, Eva and Tina is 33a kg. Pamela has a mass of 7a kg. Eva is 3 kg heavier than Pamela.
  1. What is Tina's mass in terms of a?
  2. If a = 10, what is Tina's mass? 
3 m
(a)

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(b)

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The total mass of Pamela, Eva and Tina is 33a kg. Pamela has a mass of 7a kg. Eva is 3 kg heavier than Pamela.
  1. What is Tina's mass in terms of a?
  2. If a = 10, what is Tina's mass?