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

### Instruction:
Mrs. Young buys a 300 piece puzzle set for her three sons.  She divides the pieces evenly to the three boys.  Reyn can place 25 pieces into the puzzle picture.  Rhys places twice as much as Reyn.  Rory places three times as much as Reyn. Altogether, how many puzzle pieces are still left to be placed?

### Response:
 Reyn anaweka vipande 25.
Rhys anaweka vipande 2*25 = <<2*25=50>>50.
Rory anaweka vipande 3*25 = <<3*25=75>>75.
Watoto wote watatu wanaweka vipande 25+50+75 = <<25+50+75=150>>150.
Bado kuna vipande 300-150 = <<300-150=150>>150 ambavyo havijawekwa.