Answer :
Given: Ratio of present age of Rehana and her mother = 2:7
So, let present age of Rehana = 2x
∴ Present age of her mother = 7x
After 2 years, age of Rehana = (2x + 2) years
After 2 years, age of her mother = (7x + 2) years
Now, given that after two years ratio of their ages will be 1:3.
On cross multiplying, we get:
6x + 6 = 7x + 2
⇒ 7x – 6x = 6 – 2
⇒ x = 4
∴ Present age of Rehana = 2x = (2 × 4) years = 8 years
Rate this question :
How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
view all courses
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation


RELATED QUESTIONS :
Select the approp
MHB - Math Part-ISelect the approp
MHB - Math Part-ISelect the approp
MHB - Math Part-IIf the product of
MHB - Math Part-IIf a:b = 3:1 and
MHB - Math Part-IIf <span lang="EN
MHB - Math Part-IIf (28 - x) is th
MHB - Math Part-IThe ratio of pres
MHB - Math Part-IThe ratio of pres
MHB - Math Part-IThree numbers are
MHB - Math Part-I