Answer:
1.2L
Step-by-step explanation:
1/2 of the bowl is orange juice.
1/2 of the remaining 1/2, or 1/4, is grape juice.
The remaining space, 1-(1/2+1/4/) = 1-3/4 = 1/4, is cherry juice. This is 300 mL.
This means the 1/4 that is grape juice is also 300 mL.
Since it is twice as much, this means the 1/2 that is orange juice is 300(2) = 600 mL.
This gives us a total of 300+300+600 = 1200 mL; this is 1200/1000 = 1.2 L.