Gem, Yoko and Jade had a total of 530 erasers. Gem gave
35 of her erasers away. Jade gave away 5 times as many erasers as Gem and Yoko gave away 65 erasers. In the end, they had 195 erasers left. How many erasers did Yoko and Jade have in total in the end?
|
Gem |
Yoko |
Jade |
Total |
Before |
5 u |
? |
? |
530 |
Change |
- 3 u |
- 65 |
- 15 u |
- 335 |
After |
2 u |
? |
195 |
Number of erasers that Jade gave away
= 5 x 3 u
= 15 u
Number of erasers given away
= 3 u + 65 + 15 u
= 18 u + 65
18 u + 65 = 530 - 195
18 u = 335 - 65
18 u = 270
1 u = 270 ÷ 18 = 15
Number of erasers that Yoko and Jade had in the end
= 195 - 2 u
= 195 - 2 x 15
= 195 - 30
= 165
Answer(s): 165