Below is an instruction that describes a task. Write a response that appropriately completes the request in Thai. Please answer in Thai.

### Instruction:
Tom goes to a combined undergrad and Ph.D. program.  It takes 3 years to finish the BS and 5 years to finish the Ph.D.  Tom finishes it in 3/4ths the time.  How long does it take for him to finish?

### Response:
 โปรแกรมนี้ใช้เวลาปกติ 3+5=<<3+5=8>>8 ปี
ดังนั้นเขาสามารถสำเร็จในเวลา 8*3/4=<<8*3/4=6>>6 ปี