Question
Box C is 5 times as heavy as Box D. Box E is 7.86 kg heavier than Box D. The total mass of Box C and Box D is 51 kg.
  1. What is the mass of Box D?
  2. What is the mass of Box E?
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Box C is 5 times as heavy as Box D. Box E is 7.86 kg heavier than Box D. The total mass of Box C and Box D is 51 kg.
  1. What is the mass of Box D?
  2. What is the mass of Box E?