Question
Pierre bought 78 more erasers than Wesley and Wesley bought 21 erasers more than Risa. The total number of erasers Pierre and Wesley bought was 6 times the number of erasers Risa bought.
  1. How many erasers does Pierre need to give Wesley so that they have the same number of erasers?
  2. How many erasers did all three of them have altogether? 
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Pierre bought 78 more erasers than Wesley and Wesley bought 21 erasers more than Risa. The total number of erasers Pierre and Wesley bought was 6 times the number of erasers Risa bought.
  1. How many erasers does Pierre need to give Wesley so that they have the same number of erasers?
  2. How many erasers did all three of them have altogether?