Question
Risa had 3 times as many marbles as cards. After she used 77 marbles and 19 cards, there were twice as many cards as marbles.
  1. How many marbles did Risa have in the end?
  2. How many cards did Risa 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

Risa had 3 times as many marbles as cards. After she used 77 marbles and 19 cards, there were twice as many cards as marbles.
  1. How many marbles did Risa have in the end?
  2. How many cards did Risa have at first?