 
 <prompt> Yan wasan makaranta suna yi car wash domin su kudin kuɗi. Matsayin su shine a kudin $150. Har yanzu sun samu kudin $10 daga kowanne gida uku da kuma $5 daga kowanne gida 15. Me yasa suke buƙatar kudin gaba domin su samu matsayin su? <response>: Sauƙaƙe ƙungiyar makaranta ta kasance $10/family * 3 family = $30 daga uku na ƙungiyoyi.
Sauƙaƙe ƙungiyar makaranta ta kasance $15/family * 5 family = $75 daga 15 na ƙungiyoyi.
Sauƙaƙe ƙungiyar makaranta ta kasance $30 + $75 = $105 kafin yin hakan.
Kungiyar makaranta ta buƙatar $150 - $105 = $45 mafi yawan domin samun matsayin su. 

Javobi zai kasance 45. 