"Which of the two is cheaper?"

Translation: Ποιο από τα δύο είναι φθηνότερο;

[Lucy494]

Is ποιο είναι φθηνότερο από τα δύο right as well?

[D_..]

That should be fine, but if you can keep the order from the original in the translation, it usually pays off in Duo. ;)

[dantedante19]

Why not "ποιος από οι δύο είναι φθηνότερος;?

[D_..]

Από goes with the accusative: ποιος από τους δύο...

[Lng52-._]

Doesn't "Ποιος" = "Which" and "Ποιο" = "What"?

[D_..]

Ποιος/ποια/ποιο are used for both 'who' and 'which one'. Τι is used to literally ask 'What is this?'

[silly_fool]

The hints have οι δύο not τα δύο. What is the difference between the two?

[D_..]

Οι δύο refers to masculine words, τα δύο refers to neuter words, the clue is in the article. :)

[LeonidTere2]

why wouldn't be "ποιος από των δύο είναι φθηνότερος" right, please? http://prntscr.com/qanvqn

[D_..]

Από goes with the accusative: ποιος από τους δύο...