How much would it cost to take MTR from the hong kong airport to Kowloon Hotel?

If taking the airport express + MTR, the fare is HKD60, and the travel time is about 50 mins.
From the airport, you can take the airport express to Tsing Ti Station, and then transfer to Tung Chung Line to Lai King Station, where you can transfer t West Rail Line to East Tsim Sha Tsui Station. Take the Exit L3 you will see the hotel.

Or you can take the bus No. A21 to Middle Road, Nathan Road. Getting off the bus, you will see the hotel. The bus fare is HKD33, and the travel time is about 77 mins.