Question
The total mass of Sabrina, Zara and Dana is 31d kg. Sabrina has a mass of 4d kg. Zara is 4 kg heavier than Sabrina.
  1. What is Dana's mass in terms of d?
  2. If d = 15, what is Dana's mass? 
3 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

The total mass of Sabrina, Zara and Dana is 31d kg. Sabrina has a mass of 4d kg. Zara is 4 kg heavier than Sabrina.
  1. What is Dana's mass in terms of d?
  2. If d = 15, what is Dana's mass?