Question

five years ago, ross was n times as old as amanda was. if amanda is now 19 years old, how old is ross now in terms of n
A) 14N-5
B)14N+5
c)19N+5
D)15N+5
E)19N-5

Answer 1

let ross age now be r and amanda's a=19
then before 5 years:
r-5=n*(a-5)
then we have
r-5=n*14
r=14n+5
there you have it