Tengo tres primas : María, Marcela y Maricela, todas menores de 23 años y la suma de sus edades es igual a 30?

<img src="https://tex.z-dn.net/?f=Hola~~%20Maria%20%5C%5C%20%20%5C%5C%20La~suma~de~las~3~primas~es~30%3A%20%5C%5C%20%20%5C%5C%20~~~~~~~Suma%3D%2B30%5Cbegin%7Bcases%7DMari%27a%20%5C%5C%20Marcela%20%5C%5C%20Maricela%5Cend%20" />

<img src="https://tex.z-dn.net/?f=Tambien~nos~dice~la~condicio%27n%20~que~ellas~son~menores~que~23~y%20%5C%5C%20sus%20~sus~edades~deben~ser~primos~entonces~los~nu%27meros~primos%20%5C%5C%20menores~que~23~es%3A%20%5C%5C%20%20%5C%5C%20%5Cboxed%7B2~~3~~5~~7~~9~~11~~13~~17~~19~~21%7D---%5C%20%5Ctextgreater%20%5C%20menores~que~23%20%5C%5C%20%20%5C%5C%20Ahora~las~que~suma~esos~nu%27meros~primor~para~30~son%3A%20%5C%5C%20" />

<img src="https://tex.z-dn.net/?f=%5Cunderbrace%7B2~~3~~5~~7~~9~~11~~13~~17~~19~~21%7D_%7B%5Cboxed%7B2%7D~%2B~%5Cboxed%7B11%7D~%2B~%5Cboxed%7B17%7D%7D%20%20%5C%5C%20%5C%5C%20~~~~~~~~~~~~~~~~~%20%5Cboxed%7B%5Cboxed%7B30%7D%7D---%5C%20%5Ctextgreater%20%5C%20suma~de~los~3%20%5C%5C%20%20%5C%5C%20Las~edades~de~cada~una~seria~en~orden.%20%5C%5C%20%20%5C%5C" />

Maria = 2años

Marcela = 11años

Maricela = 17años = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Espero te sirva, saludos!