Julie had 1810 mℓ more tea than Jaslyn. After Julie gave Jaslyn 590 mℓ of tea, the ratio of Julie's tea to Jaslyn's tea became 7 : 4. How much tea did Julie have at first? Give your answer in millilitres.
|
Julie |
Jaslyn |
Difference |
Before |
1 u + 1810 |
1 u |
1810 |
Change |
- 590 |
+ 590 |
|
After |
1 u + 1220 |
1 u + 590 |
630 |
Comparing Julie and Jaslyn in the end |
7 p |
4 p |
3 p |
Volume of tea that Julie had in the end
= 1 u + 1810 - 590
= 1 u + 1220
Difference in the volume of tea between Julie and Jaslyn in the end
= 7 p - 4 p
= 3 p
3 p = 1220 - 590
3 p = 630
1 p = 630 ÷ 3 = 210
Volume of tea that Julie had at first
= 7 p + 590
= 7 x 210 + 590
= 1470 + 590
= 2060 mℓ
Answer(s): 2060 mℓ