Present age of abi and nithi are in the ratio 7:8 respectively.Seven years hence this ratio will become 8:9 respectively.What is abi present age in years?
Option
a)40 years
b)38 years
c)48 years
d)35 years

• Present age
  a/n=7/8
  a=7n/8 -->(1)
  
  7 years hence
  a+7/n+7= 8/9
  9a+63=8n+56
  9a-8n+7=0 -->(2)
  
  sub a=7n/8 in (2)
  
  63n/8-8n+7=0
  n=56
  
  a= 7*56/8 = 49
  
  abi's age is 49 years
  
• 10 years agoHelpfull: Yes(25) No(0)
• 7x+7/8x+7=8/9
  x=7
  present age of abi is =7*7=49 years
• 10 years agoHelpfull: Yes(1) No(0)
• Ans : 49 years
• 10 years agoHelpfull: Yes(0) No(0)
• ans:49 years
  
• 10 years agoHelpfull: Yes(0) No(0)