Present ages of Neha and Rashmi are in the ration of 7 : 8 respectively. Six years hence, the ration of their ages will become 9 : 10 respectively. What is the Rashmis present age?(In years).

A) 36

B) 24

C) 28

D) 40

E) 42

Correct answer:
B) 24

Description for Correct answer:
According to question,

\( \frac{7x+6}{8X+6} = \frac{9}{10} \)

70x + 60 = 72x + 54

2x = 6

x = 3


Please provide the error details in above question