Yen, Min and Tina had a total of 165 erasers. Yen gave
14 of her erasers away. Tina gave away 3 times as many erasers as Yen and Min gave away 40 erasers. In the end, they had 113 erasers left. How many erasers did Min and Tina have in total in the end?
| |
Yen |
Min |
Tina |
Total |
| Before |
4 u |
? |
? |
165 |
| Change |
- 1 u |
- 40 |
- 3 u |
- 52 |
| After |
3 u |
? |
113 |
Number of erasers that Tina gave away
= 3 x 1 u
= 3 u
Number of erasers given away
= 1 u + 40 + 3 u
= 4 u + 40
4 u + 40 = 165 - 113
4 u = 52 - 40
4 u = 12
1 u = 12 ÷ 4 = 3
Number of erasers that Min and Tina had in the end
= 113 - 3 u
= 113 - 3 x 3
= 113 - 9
= 104
Answer(s): 104
