Question

the ratio of the ages a and b is 9:4. three years ago the ratio of theirs ages was 3:1 find theirs present ages

Answer 1

Heya !!!


Let the present age of A and b Be 9X and 4X.



Three years ago age of A = ( 9X - 3 )


And,


Three years ago age of B = ( 4X - 3 )



According to question,



9X - 3 : 4X - 3 = 3 : 1


9X - 3 = 3 ( 4X - 3 )


9X - 3 = 12X - 9


12X - 9X = -3 + 9


3X = 6


X = 6/3 = 2



Present age of A = 9X = 9 × 2 = 18 year's

And,

Present age of B = 4X = 4 × 2 = 8 years.



★ HOPE IT WILL HELP YOU ★

Answer 2

i have tried to keep the solution short, hope this helps u