The respective ratio between the present age Aarti and Savita is 5 : x. Aartl is 9 years younger than Jahnavi. Jahnavi's age after 9 years will be 33 years. The difference between Savita's and Aarti's age is same as the present age of Jahnavi. What will come in place of x?
21
37
17
13
Jahnavi's present age= 33 - 9 = 24 years
Aarti's present age= 24 - 9 = 15 years
Aarti : Savita= 5 : x = 15 : 3x
Therefore, Savita present age= 3x years
Therefore, 3x - 15 = 24
=> 3x = 24 + 15 = 39
=> x = 393393 = 13
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