"몸에 뼈가 얼마나 많이 있어요?"

Translation: How many bones are there in the body?

[LeahAlmaStein]

can "많이" be omitted from this sentence?

[KittyBlossom0802]

No. 얼마나 많이 means "how many". 얼마나 means "how" and 많이 means "many". So it can't be omitted.

[BruceGigis]

얼마나 means "how much" instead of "how", source: Google Translate (Translation verified by Translate Community).

The "how" you are referring to could be 어떻게.

[Ben278950]

이백육?

[BarAdal3]

이 중요한 정보를 알려주셔서 감사드립니다! :-)

[TikaShier]

Leftover word sentence! : Up there wearing good pasta

[KevinAD3]

Only one way to find out...

[GuyUnger]

If anyone's curious, the answer is 206

[ChiamakaG]

Could this also be translated as "몸에 뼈 몇 개가 있어요?"

[puptarts]

I'm getting fed up with the Korean course. 그/이 isn't in the sentence, therefore a tense (a/the) isn't defined. Source: native tongue.

[BarAdal3]

But the Korean language doesn't always use those "particles" often anyway, so it's not all Duolingo's fault. You should be able to guess them from context