Jane had the same number of blue, grey and brown pens at first. After giving some blue and grey pens and 76 brown pens away, Jane had 205 pens left. There were 4 times as many blue pens as grey pens left. The number of brown pens left was 29 fewer than the number of blue pens left. How many brown pens did she have at first?
| |
Grey |
Blue |
Brown |
Total |
| Before |
4 u + 47 |
4 u + 47 |
4 u + 47 |
|
| Change |
- 3 u - 47 |
- 47 |
- 76 |
|
| After |
1 u |
4 u |
4 u - 29 |
205 |
Jane had the same number of blue, grey and brown pens at first.
Total number of pens in the end
= 1 u + 4 u + 4 u - 29
= 9 u - 29
9 u - 29 = 205
9 u = 205 + 29
9 u = 234
1 u = 234 ÷ 9 = 26
Number of brown pens that Jane had at first
= 4 u - 29 + 76
= 4 u + 47
= 4 x 26 + 47
= 151
Answer(s): 151
