Question

Banu is 20 years older than binu. In 5years, Banu will be twice as old as binu. Find their present ages.​

Answer 1

Step-by-step explanation:

 Let Present age of Binu = x   

     Therefore, Present age of Banu = x+20    

 After 5 years,      

  Age of Binu = x+5       

 Age of Banu = (x+20)+5                    

       = x+25According to question ,    

          x+25 = 2 (x+5)          

   x+25 = 2x + 10                

 25 = 2x+10 - x              

  25 = x+10              

  25 - 10 =x             

  15 = x         

     or x= 15

Hence Present age of Binu = 15 years 

 and Present age of Banu = x+20                                    

       = 15 + 20                                         

  =35 Years !!