Nicole had 2060 mℓ more tea than Lynn. After Nicole gave Lynn 580 mℓ of tea, the ratio of Nicole's tea to Lynn's tea became 7 : 4. How much tea did Nicole have at first? Give your answer in millilitres.
| |
Nicole |
Lynn |
Difference |
| Before |
1 u + 2060 |
1 u |
2060 |
| Change |
- 580 |
+ 580 |
|
| After |
1 u + 1480 |
1 u + 580 |
900 |
Comparing Nicole and
Lynn in the end |
7 p |
4 p |
3 p |
Volume of tea that Nicole had in the end
= 1 u + 2060 - 580
= 1 u + 1480
Difference in the volume of tea between Nicole and Lynn in the end
= 7 p - 4 p
= 3 p
3 p = 1480 - 580
3 p = 900
1 p = 900 ÷ 3 = 300
Volume of tea that Nicole had at first
= 7 p + 580
= 7 x 300 + 580
= 2100 + 580
= 2680 mℓ
Answer(s): 2680 mℓ
