Mary has some marbles. She has 19 less marbles in Box B than in Box C. After 24 marbles were transferred from Box C to Box B, there were 65 marbles in Box C.
- How many marbles were there in Box C at first?
- How many marbles were there in Box B in the end?
|
Box B |
Box C |
Before |
1 u |
1 u + 19 |
Change |
+ 24 |
- 24 |
After |
1 u + 24 |
65 |
(a)
Number of marbles in Box C at first
= 65 + 24
= 89
(b)
Number of marbles in Box B at first
= 89 - 19
= 70
Number of marbles in Box B in the end
= 70 + 24
= 94
Answer(s): (a) 89; (b) 94