Question
The total mass of Xavier and Ivan is 166 kg. The total mass of Luis and Ivan is 126 kg.
  1. How much heavier is Xavier than Luis?
  2. If the total mass of the 3 boys is 237 kg, how heavy is Ivan?
4 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 Xavier and Ivan is 166 kg. The total mass of Luis and Ivan is 126 kg.
  1. How much heavier is Xavier than Luis?
  2. If the total mass of the 3 boys is 237 kg, how heavy is Ivan?