 
 <prompt> Harry's birthday was three weeks after the closing of the school. His three friends decided to contribute an equal amount of money to throw him a party. Harry added $30 to the contribution, making the total contribution three times as much as Harry contributed. Calculate the total amount of money that each of Harry's friends contributed. <response>: ```Ti o ti owo iroyin ni aye meji pe Harry ti owo iroyin, ati Harry ti owo iroyin $30, owo iroyin ni aye meji pe 3 * $30 = $90 Lati pe Harry ti owo iroyin $30, omo iya re meta lo ti owo iroyin $90 - $30 = $60 Lati pe omo iya meta lo ti owo iroyin, gbogbo omo iya lo ti owo iroyin $60/3 = $20.

Iwe naa yoo wa ni 20.``` 