A) 9 years
B) 4 years
C) 5 years
D) None of these
Correct Answer: D
Solution :
Let the present ages of Chetana and Shikha be \[5x\] and \[7x\] years respectively. After 7 years, \[\frac{5x+7}{7x+7}=\frac{11}{14}\] \[\Rightarrow \] \[\frac{5x+7}{x+1}=\frac{11}{2}\] \[\Rightarrow \] \[11x+11=10x+14\] \[\Rightarrow \] \[x=3\] \[\therefore \] Required difference \[=7x-5x=2x=2\,\,\,\,3=6\] yearsYou need to login to perform this action.
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