Question
Mary has some marbles. She has 3 less marbles in Box P than in Box Q. After 10 marbles were transferred from Box Q to Box P, there were 55 marbles in Box Q.
  1. How many marbles were there in Box Q at first?
  2. How many marbles were there in Box P in the end?
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Mary has some marbles. She has 3 less marbles in Box P than in Box Q. After 10 marbles were transferred from Box Q to Box P, there were 55 marbles in Box Q.
  1. How many marbles were there in Box Q at first?
  2. How many marbles were there in Box P in the end?