) the combined ages of reena ,seena are 44 yrs and reena is twic as old as seena was when reena was half the as old seena will be when seena is three times as old as reena was when reena was 3 times as old as seena. How old is reena??? (SakDev – 127)

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mohan_teja111

  • May 29th, 2008
 

                          bakward method
                                    inital ages are reena say x
                                                                seena  y



                                  from problem
                                                 from back
                                                                        x=3y
                                                                        y=3x=3*3y=9y
                                                                         y/2=9y/2
                                                                       9y/2*2=9y
                                          ;x+y=9y+y=44
                                                       y=44/10
                                                       y=22/5
                                                          

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