Elyse, Zara and Gwen had a total of 283 stamps. Elyse gave
13 of her stamps away. Gwen gave away 3 times as many stamps as Elyse and Zara gave away 83 stamps. In the end, they had 128 stamps left. How many stamps did Zara and Gwen have in total in the end?
| |
Elyse |
Zara |
Gwen |
Total |
| Before |
3 u |
? |
? |
283 |
| Change |
- 1 u |
- 83 |
- 3 u |
- 155 |
| After |
2 u |
? |
128 |
Number of stamps that Gwen gave away
= 3 x 1 u
= 3 u
Number of stamps given away
= 1 u + 83 + 3 u
= 4 u + 83
4 u + 83 = 283 - 128
4 u = 155 - 83
4 u = 72
1 u = 72 ÷ 4 = 18
Number of stamps that Zara and Gwen had in the end
= 128 - 2 u
= 128 - 2 x 18
= 128 - 36
= 92
Answer(s): 92
