"Yang mana tomat yang termerah itu?"

Translation: Which one is the reddest tomato?

[kuyaC]

Why is there "itu" in the Indonesian sentence? Isn't it useless?

[yipivan]

I think the sentence is parsed in this way:

• Yang mana [tomat [yang termerah] itu]?

Hence a clumsy literal translation is

• Which is the tomato that is the reddest?

[laviedulinguiste]

This answer is not very colloquial. Another possible solution should be "Which tomato is the reddest?"

[Sam67858]

Or “Which tomato is the reddest one?”

[tuanle163158]

what's "itu" doing?

[noey536981]

Two yang's and a random itu??? Now we're getting into professional bahasa indonesia

[volumniax]

"One" is acceptable... but kind of redundant. I would be more likely to say either "Which one is the reddest" or "Which is the reddest tomato."

[phil727975]

An object is either red or it is not of this colour. There is no such thing as 'redder', greener or yellower, or is there?

[mapmanic]

Someone slaps your face, so you now have a red face. They slap you again---it's redder.

[Brian260733]

And there's the famous English phrase that says "The grass is always greener on the other side."

[Chiew9]

Absolutely.