Question 265299
If Sally adds four times her age four years from now to five times her age five years from now, she gets ten times her current age.
4(s+4) + 5(s+5) = 10s
4s + 16 + 5s + 25 = 10s
16 + 25 = 10s - 4s - 5s
41 = s
:
Sally is 41 now
:
how old will sally be five years from now?
Sally will be 46