3 Views

Question : The current ages of Sonali and Monali are in the ratio 5 : 3. Five years from now, their ages will be in the ratio of 10 : 7. Determine Monali's current age.

Option 1: 5 years

Option 2: 3 years

Option 3: 9 years

Option 4: 15 years


Team Careers360 20th Jan, 2024
Answer (1)
Team Careers360 21st Jan, 2024

Correct Answer: 9 years


Solution : Given: The current ages of Sonali and Monali are in the ratio 5 : 3.
Five years from now, their ages will be in the ratio 10 : 7.
Let the ages of Sonali and Monali be $5x$ years and $3x$ years respectively.
As per the given conditions,
⇒ $\frac{5x+5}{3x+5}=\frac{10}{7}$
⇒ $7(5x+5)=10(3x+5)$
⇒ $35x–30x=50–35$
⇒ $5x=15$
⇒ $x=3$
So, Monali's current age = 3 × 3 = 9 years
Hence, the correct answer is 9 years.

How to crack SSC CHSL

Candidates can download this e-book to give a boost to thier preparation.

Download Now

Know More About

Related Questions

TOEFL ® Registrations 2024
Apply
Accepted by more than 11,000 universities in over 150 countries worldwide
Manipal Online M.Com Admissions
Apply
Apply for Online M.Com from Manipal University
View All Application Forms

Download the Careers360 App on your Android phone

Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile

150M+ Students
30,000+ Colleges
500+ Exams
1500+ E-books