Question : A train having a length of 330 metres takes 11 seconds to cross a 550 metres long bridge. How much time will the train take to cross a 570 metres long bridge?
Option 1: $\frac{45}{4}$ seconds
Option 2: $\frac{47}{4}$ seconds
Option 3: $20$ seconds
Option 4: $16$ seconds
Correct Answer: $\frac{45}{4}$ seconds
Solution :
Given: A train having a length of 330 metres takes 11 seconds to cross a 550 metres long bridge.
So, in 11 seconds the train covers (550 + 330) = 880 metres
The speed of the train = $\frac{880}{11}$ = 80 m/s
Now to cover a bridge of length 570 metres, the train has to cover (570 + 330) = 900 metres
So, the required time = $\frac{900}{80}$ = $\frac{45}{4}$ seconds
Hence, the correct answer is $\frac{45}{4}$ seconds.
Related Questions
Know More about
Staff Selection Commission Multi Tasking ...
Answer Key | Cutoff | Selection Process | Preparation Tips | Eligibility | Application | Exam Pattern
Get Updates Brochure
Your Staff Selection Commission Multi Tasking Staff Exam brochure has been successfully mailed to your registered email id “”.
