¿Podría usted decirme si la entrada cuesta catorce euros o dieciséis?

Podría usted decirme... is a very polite, formal way to ask for information.

• Dígame... = Tell me... / Go ahead and tell me...
  This can sound more direct.
• ¿Puede decirme...? = Can you tell me...?
  Polite and common.
• ¿Podría decirme...? = Could you tell me...?
  Usually sounds softer and more courteous.

So podría is often used when speaking politely to a stranger, especially in service situations.

Podría is the conditional form of poder (to be able to / can).

Here, ¿Podría usted decirme...? literally means something like:

Could you tell me...?

The conditional makes the request less direct and therefore more polite.

Usted is the formal word for you.

In Spanish, subject pronouns are often omitted because the verb already shows who the subject is. So you could say:

¿Podría decirme...?

and it would still clearly mean Could you tell me...?

Including usted adds emphasis or extra formality. It can make the sentence sound especially respectful.

Decirme = to tell me

It is made of:

• decir = to tell / to say
• me = to me

In Spanish, object pronouns can be attached to an infinitive:

• decirme = to tell me
• explicarle = to explain to him/her/you
• ayudarnos = to help us

You could also place the pronoun before a conjugated verb in some structures, but with an infinitive like decir, attaching it is completely normal.

Here si means whether / if.

So:

decirme si la entrada cuesta catorce euros o dieciséis
= tell me whether the ticket/admission costs fourteen euros or sixteen

This si introduces an indirect yes/no question.

Because this is si meaning if / whether, which is written without an accent.

Compare:

• si = if / whether
• sí = yes or himself/herself/itself in some contexts

So in this sentence, si is correct because it means whether.

La entrada can mean several related things depending on context, including:

• the entrance
• the admission
• the ticket

In this sentence, because it is followed by a price, la entrada most naturally means the ticket or admission.

For example, in a cinema, museum, or event:

• La entrada cuesta... = The ticket costs... / Admission costs...

Spanish often uses costar (to cost) when talking about prices.

So:

• La entrada cuesta catorce euros.
  = The ticket costs fourteen euros.

English often says either:

• The ticket costs fourteen euros, or
• The ticket is fourteen euros

Spanish strongly prefers costar in this kind of sentence.

Both are possible, but the sentence as written is completely natural.

Spanish often mentions the currency after the first number and leaves it understood after the second:

• catorce euros o dieciséis

This works like saying:

• fourteen euros or sixteen

The second euros is omitted because it is obvious.

You could also say:

• catorce o dieciséis euros

That is also correct.

After a number, Spanish normally does not use an article with the noun:

• catorce euros
• dos entradas
• tres minutos

So catorce euros is just the normal pattern: number + noun.

It is formal.

The main clues are:

• podría instead of a more direct form
• usted, the formal you

This is the kind of sentence you might use with:

• staff at a museum
• a ticket seller
• hotel staff
• someone you do not know

In Spain, people often use informal language more quickly than in some other Spanish-speaking places, but this sentence is still perfectly natural in a polite customer-service context.

A less formal version could be:

¿Podrías decirme si la entrada cuesta catorce euros o dieciséis?

That uses podrías, the tú form.

You could also say:

¿Me puedes decir si la entrada cuesta catorce euros o dieciséis?

This is polite too, but less formal than the original.

This word order is very common in polite Spanish questions.

The structure is:

• ¿Podría usted...? = Could you...?
• decirme = tell me
• si... = whether...

So the sentence builds naturally like this:

Could you tell me whether...

Spanish does not need to change word order as much as English does in indirect questions. After si, the clause stays in normal statement order:

• la entrada cuesta catorce euros o dieciséis

not an inverted structure.

Yes. That is also correct.

These are both natural:

• ¿Podría usted decirme...?
• ¿Me podría usted decir...?

The meaning is the same. The difference is mainly where the pronoun me is placed:

• attached to the infinitive: decirme
• before the conjugated verb: me podría decir

Both patterns are common in Spanish.

A rough guide for an English speaker is:

• catorce: kah-TOR-seh
• dieciséis: dye-see-SAYS

A few notes:

• In Spain, c before e is pronounced like the th in think in standard Castilian pronunciation, so catorce may sound more like kah-TOR-theh.
• dieciséis has a written accent because the stress falls on the last part: -séis.

Dieciséis is written with an accent to show the correct stress.

Without going too deep into spelling rules, the accent tells you that the stress falls on the final part:

• die-ci-séis

This helps distinguish the correct pronunciation.

Yes. It sounds natural, polite, and clear.

A native speaker in Spain might say exactly this in a formal situation, especially when asking about admission prices. Depending on the setting, they might also choose a slightly shorter or more casual version, but the original sentence is fully idiomatic.