Sam drank
13 of the juice in his juice bottle. He accidentally spilled
14 of the remaining juice. As a result, he had 420 mℓ of juice left in his juice bottle. How much juice did Sam have at first? Give your answer in mℓ.
| Drank |
Remaining juice |
Total |
| 1x2 |
2x2 |
3x2 |
| |
Spilled |
Left |
|
| |
1x1 |
3x1 |
|
| 2 u |
1 u |
3 u |
6 u |
Fraction of remaining juice left after Sam spilled some
= 1 -
13=
23The volume of the remaining juice is the combined repeated identity. Make the volume of remaining juice the same. LCM of 2 and 4 is 4.
Volume of water left = 3 u
3 u = 420
1 u = 420 ÷ 3 = 140
Total volume of water that Sam had at first
= 6 u
= 6 x 140
= 840 mℓ
Answer(s): 840 mℓ
