"In the below given question, a few statements have been given. Analyse the given statements and answer whether the data given in the statements are sufficient to answer the question or not.

I. Buses for Ramnagar leave after every 30 minutes, till 10 p.m.
II. Fifteen minutes ago, one bus has left for Ramnagar.
It is 8:00 p.m., when can Hemant get ne×t bus for Ramnagar from Dhanpur?"

According to the question,

Statement I: Buses for Ramnagar leave after every 30 minutes, till 10 p.m.

Here, no information regarding last bus timing from Ramnagar is given, therefore statement I alone is not sufficient to answer the question.

Statement II: Fifteen minutes ago, one bus has left for Ramnagar.

Here, last bus timing is 7:45 pm (8:00 pm - 15 min) for Ramnagar but frequency of the bus cannot be determined, therefore statement I alone is not sufficient to answer the question.

Combining statement I and II: Buses for Ramnagar leave after every 30 minutes, till 10 p.m. Fifteen minutes ago, one bus has left for Ramnagar.

Last bus timing from Ramnagar was 7:45 pm and as buses leave after every 30 minute. Thus the ne×t bus would be at 8:45 pm (6:40 pm + 30 min). It is mentioned that buses leave till 10:00 pm, therefore Hemant can get ne×t bus for Ramnagar from Dhanpur.

∴ Both statement I and statement II together are needed to answer the question.

Hence, "Option 4" is the correct answer.