The currency used on the planet Zog consists of bank notes of a fixed size differing only in colour. Three green notes and eight blue notes are worth 46 zogs; eight green notes and three blue notes are worth 31 zogs.
How many zogs are two green notes and three blue notes worth?
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13 \text{ zogs}
16 \text{ zogs}
19 \text{ zogs}
25 \text{ zogs}
27 \text{ zogs}
Select an option, then submit.
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