A is 4 yrs old and B is thrice A>when A is 12 yrs, how old will B be?
16/20/24/28

• b = 3times a= 12 years
  a will be 12 after 8 years
  when a will be 12 years b will be 12 + 8 = 20 years
• 10 years agoHelpfull: Yes(9) No(1)
• B=3A
  today A=4 so B=12
  After 8 years, A=12
  so B will be 12+8=20 years old
• 10 years agoHelpfull: Yes(9) No(0)
• ans is 28
  given b is 3 times > a when a is 12 yrs old.
  so when a is 12 years old b=36 years old.
  a becomes 12 yrs old after 8 yrs,so current age of b=36-8=28 yrs
  
• 10 years agoHelpfull: Yes(2) No(1)
• 20 simple +8
• 10 years agoHelpfull: Yes(0) No(3)
• simple 12+8 = 20 answer
• 10 years agoHelpfull: Yes(0) No(0)
• 12+8 = 20 answer
• 10 years agoHelpfull: Yes(0) No(0)
• A-4. B-4*3=12
  Diff-8.
  Now a is 12
  12+8=20
• 10 years agoHelpfull: Yes(0) No(0)
• ans is 36
  when a is 4 b is 12 then when A is 12 ans is 36
  
• 10 years agoHelpfull: Yes(0) No(7)
• please finalize correct soln and confm that....
• 9 years agoHelpfull: Yes(0) No(0)
• A=4
  so B=12
  AFTER 8 YEARS A WILL BE 12
  SO B WILL BE 12+8=20
• 9 years agoHelpfull: Yes(0) No(0)
• 12+8=20 years
• 9 years agoHelpfull: Yes(0) No(0)
• A=4 yrs, B is thrice A when A is 12 yrs i.e., after 8 yrs from now, i.e., B+8=3(12); B=24
• 9 years agoHelpfull: Yes(0) No(1)
• ANS IS 28
  
• 8 years agoHelpfull: Yes(0) No(0)
• A is 4yrs
  A=3B
  4=3*4
  4=12
  12=12+8=20
• 7 years agoHelpfull: Yes(0) No(0)