Question
Erika had 3 times as many stamps as coins. After she used 81 stamps and 11 coins, there were thrice as many coins as stamps.
  1. How many stamps did Erika have in the end?
  2. How many coins did Erika have at first?
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Erika had 3 times as many stamps as coins. After she used 81 stamps and 11 coins, there were thrice as many coins as stamps.
  1. How many stamps did Erika have in the end?
  2. How many coins did Erika have at first?