In 6 years, A will be thrice as old as B was 4 years ago. If A is now 6 years older than B, find the present age of B.
a.16 years
b.24 years
c.8 years
d.12 years

• let present age of A be A
  let presennt age of B be B
  in 6 yrs
  A+6:B+6=3(B-4):B=6
  ie A+6=3(B-4)
  but given A=B+6
  so B+6+6=3(B-4)
  B=12
  ans d
• 11 years agoHelpfull: Yes(2) No(0)
• let the present age of B is x.
  the present age of A is 6.
  in 6 years A age=3(x-4)
  12=3(x-4)
  x=8
  ans:c
  x
• 8 years agoHelpfull: Yes(0) No(0)