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

### Instruction:
Harry has 50 books in his library. His sister Flora has twice as many books and their cousin Gary has half the books Harry has. How many books do the three of them own together?

### Response:
 Flora ana vitabu 50*2= <<50*2=100>>100
Gary ana vitabu 50/2= <<50/2=25>>25
Pamoja wanamiliki vitabu 100+25+50= <<100+25+50=175>>175