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

### Instruction:
Dina has twice as many dolls as Ivy. 2/3 of Ivy's dolls are collectors editions. If Ivy has 20 collectors edition dolls, how many dolls does Dina have?

### Response:
 ไอวี่มีตุ๊กตา 20/2*3=<<20/2*3=30>>30 ตัว
ดีน่ามีตุ๊กตา 30*2=<<30*2=60>>60 ตัว