I got it wrong on chat gpt4 too

(1)Next is the discount system for KTX trains How much should a couple with two middle school children pay for a round-trip ticket between Seoul and Busan
(2)Discount rate 30 discount on adult fare if used by at least three adults in the family
(3)a one-way fare between Seoul and Busan
(4)a normal rate
(5)a discount rate of 30

(1)! How many times did you answer
(2)1234pm
(3)#GPT4 I’ll calculate it again If at least 3 people in your family use it, you can get a 30 discount on adult fare
(4)The one-way fare for adults is W50000 and the 30 discount fare is W35000The one-way fare for teenagers is W30000 and the 30 discount fare is W21000
(5)If a couple and two middle school children purchase a round-trip ticket between Seoul and Busan, and two adults and two teenagers use it, the total fare is as follows
(6)Round trip fee for 2 adults W350002
(7)Round trip fee for 2 teenagers W210002
(8)Total Fee W140000 W84000 =
(9)So the answer is 22 224000
(10)12pm