Problem based on Train
a.8, b.10, c.9, d.13
Please find the solution
The trains that starts from Mumbai at 12.00Noon will meet the first train that reaches Mumbai at 12.30, thus started at 8.00AM. Then it would meet the one that started at 9.00AM, 10.00AM so on till it reaches Pune at 4.30PM thus meeting 9 trains on the way.
A man in a train notices that he can count 21 telephone posts in one minute . If they are known to be 50 miles apart then at what speed is the train travelling?