He said to the hotel receptionist, “Can you tell me the tariff of rooms?”

He asked the hotel receptionist that if he can tell him the tariff of rooms

He asked the hotel receptionist to tell him the tariff of rooms

He enquired the hotel receptionist if he can tell him the tariff of rooms

He asked the hotel receptionist if he could tell him the tariff of rooms

All are wrong

We make changes in tenses of reported speech only when the reporting verb is in the past tense.

When the reported speech is an interrogative sentence we follow these steps-

Reporting verb 'said' is changed into 'asked'.

connector 'if' or 'whether' is used in place of commas.

Change the sentence, given in the reported speech, from interrogative to assertive.

Tense of reported speech is changed accordingly. ( in above sentence- 'can' changes into 'could')

personal Pronouns of reported speech are changed as per subject and object of reporting verb.

Here, the Second person- 'You' will change into 'he' as per object - 'me' (hidden).

By following these steps we get the final sentence - " He asked the hotel receptionist if he could tell him the tariff of rooms.

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