Q. The ratio of present ages of X and Y is 4:5. Which of the following cant be the ratio of ages of X and Y, 20 years ago?

Option
a) 2:4
b) 9:10
c) 2:3
d) 3:5

• 9:10
  as ratio of X:Y can not be more than 4:5 earlier.
• 13 years agoHelpfull: Yes(17) No(6)
• 2:4 cant be the ratio for the same
• 12 years agoHelpfull: Yes(5) No(7)
• b.9:10
  10 cant come in the ratio....
  
• 10 years agoHelpfull: Yes(4) No(2)
• let their present ages be 40 and 50
  before 20 years , their ages wud be 20 and 30
  so ratio is 2:3
• 7 years agoHelpfull: Yes(1) No(2)