The 7 natures of the Nigerian economy are Agriculture, Oil, Services, Transport, Tourism, Mining, and Energy.
15/20=0.75
if we said that each ( child = 0.75 adult )
20 total children num - 9 children in the elevator = 11 children not in the elevator.
11 children * 0.75 adult = 8.25 adults.
that is the math, in real life 8 adults can get in with 9 children.
hope that helps!
Parts of Montana, North and South Dakota, Minnesota, Wyoming, Iowa, Nebraska, Colorado, Kansas, Missouri, Oklahoma, Mississippi, and Louisiana.