Question 67
Surya works 3 times as fast as Ramya and is able to complete a work in 40 days less than the number of days taken by Ramya. Find the time in which they can complete the work together.
Solution
Efficiency of Surya and Ramya = 3 : 1
Ratio of time taken = 1 : 3
Difference = 2 units = 40 days
1 units = 20 days
So, Ramya takes 60 days and Surya takes 20 days
Together they will complete the work = $$\frac{1}{20}+\frac{1}{60}=\frac{4}{60}=15\ days$$.
Get AI Help
Create a FREE account and get:
- Download RRB Study Material PDF
- 45+ RRB previous papers with solutions PDF
- 300+ Online RRB Tests for Free
