Q1 · medium · AI-verified
A train passes a standing man in 10 seconds and a 300 m long bridge in 40 seconds. What is the length of the train?
- 150 m
- 100 m
- 200 m
- 120 m
Q2 · medium · AI-verified
Pipe A can fill a tank in 12 hours and Pipe B can fill the same tank in 18 hours. Both pipes are opened together, but after 4 hours Pipe A is closed. How many more hours will Pipe B alone take to fill the remaining tank?
- 6 hours
- 10 hours
- 12 hours
- 8 hours
Q3 · medium · AI-verified
If Ravi can type 40 pages in 8 hours, how many pages can he type in 5 hours if he works 20% faster?
- 25 pages
- 30 pages
- 35 pages
- 28 pages
Q4 · medium · AI-verified
A cistern is filled by two pipes A and B in 20 and 30 minutes respectively. Both pipes are opened simultaneously. After how many minutes should pipe B be closed so that the cistern is full in exactly 18 minutes?
- 6 minutes
- 8 minutes
- 10 minutes
- 12 minutes
Q5 · medium · AI-verified
A and B can complete a work in 12 days and 18 days respectively. If they work together, in how many days will the work be completed?
- 8 days
- 9 days
- 6.5 days
- 7.2 days