Sidee lagu xaliyaa xisaabtan: _ + _ + _ = 30 adigoo kaliya adeegsanaya tirooyiinkan 1, 3, 5, 7, 9, 11, 13, 15?

Xisaabtan waxaa jira dhowr qaab ee loo xalin karo, qaabka ugu fudud waa:

13 + 11.5 + 5.5 = 30