
Will T. answered 03/23/19
MD focusing on biomedical science tutoring.
b = boys p = b + g and we know there are 37 more g than b, we also know p = 700.
g = girls --> g - b = 37, add b to 37 to create value for g.
p=pupils --> g = 37 + b, substitute new value, g, into original equation in bold above.
--> p = b + 37 + b, combine like terms.
--> p = 2b + 37, add known value for p.
--> 700 = 2b + 37, subtract 37 from 200.
--> 663 = 2b, divide 663 by 2.
--> 331.5 = b, substitute b into equation g - b = 37.
--> g - 331.5 = 37, add 331.5 to 37.
--> g = 368.5
Ultimately, the question is poorly worded and without an answer since you can't have 331.5 boys and 368.5 girls, but this should help explain the process for answering questions of this type.