The ratio of present ages of Nisha and Shilpa is 7 : 8 respectively. Four years hence this ratio becomes 9 : 10 respectively. What is Nisha’s present age in years?	Choose the correct choice from the following answers
A) 18
B) 14
C) 17
D) Data inadequate
E) None of these
Present age of Nisha = 4×(10−9)/9×8−10×7×7   = 14 years   Answer 14
<result>B</result>
The ratio of present ages of Nisha and Shilpa is 7 : 8 respectively. Four years hence this ratio becomes 9 : 10 respectively. What is Nisha’s present age in years?