The Sum Of The Present Ages Of A Father And His Son Is 60 Years. Six Years Ago, Father’s Age Was Five Times The Age Of The Son. After Six Years Son’s Age Will Be:

Question: The Sum Of The Present Ages Of A Father And His Son Is 60 Years. Six Years Ago, Father’s Age Was Five Times The Age Of The Son. After Six Years Son’s Age Will Be:
a. 10 years
b. 12 years
c. 16 years
d. 20 years