Bryan had
58 as many marbles as Zara. After Bryan gave away 29 marbles, he had 71 less marbles than Zara. How many marbles did Zara have?
| |
Bryan |
Zara |
| Before |
5 u |
8 u |
| Change |
- 29 |
|
| After |
5 u - 29 |
8 u |
Zara had 71 more marbles than Bryan in the end. So, if Bryan had another 71 marbles, he would have the same number of marbles as Zara.
8 u = 5 u - 29 + 71
8 u - 5 u = 71 - 29
3 u = 42
1 u = 42 ÷ 3 = 14
Number of marbles that Zara had at first
= 8 u
= 8 x 14
= 112
Answer: 112
