5:3 is the present ratio between the ages of Rose and Jennie. In 5 years time Rose will be 20. What is the present age of Jennie?  Choose the correct choice from the following options.
A) 9
B) 5
C) 4
D) 7
E) 9
Let the present ages of Rose and Jennie be 5x years and 3x years respectively   5x+5 = 20   5x = 15   x = 3   Jennie's age = 3x = 9 years   Answer is 9
<result>E</result>
5:3 is the present ratio between the ages of Rose and Jennie. In 5 years time Rose will be 20. What is the present age of Jennie?