Please enter the following details
Free Daily Targets & Mocks
Study Material & Formulas PDFs
1 on 1 Mentorship
Question 67
In covering a certain distance, the speeds of A and B are in the ratio of 3: 4. A takes 20 minutes more than B to reach the destination. The time taken by A to reach the destination is
Solution
Let time taken by B is $$t$$ minutes, and thus time taken by A = $$(t+20)$$ minutes
Also, speed is inversely proportional to time,
=> $$\frac{3}{4}=\frac{t}{t+20}$$
=> $$3t+60=4t$$
=> $$t=60$$
Thus, time taken by A = $$60+20=80$$ minutes = $$1\frac{1}{3}$$ hours
=> Ans - (B)
