Question

At a naming ceremony 5/9 of the people were adult men, 2/15 were adult women and the rest were children. If there were 28 children at the naming ceremony, find the total number of people at the naming ceremony.​

Answer 1

`1 - ( (5)/(9) + (2)/(15) ) = 1 - ( (25 + 6)/(45) ) = (14)/(45 ) \\ (14)/(45) = (28)/(x) \\ x = 90`