Question

Rupak's one hour car journey from home to library , to grocery store and back to home is shown in graph above. Find the true statement about his journey.

• A. The grocery store is about $5$ miles from Rupak's house.
• B. Rupak traveled a total of $7$ miles from the time he left home until he returned.
• C. The grocery store is $7$ miles farther from Rupak's house than the library is.
• D. Rupak spent $10$ minutes at the library and $15$ minutes at the grocery store.

Answer 1

Answer: (D)

Rupak spent $10$ minutes at the library and $15$ minutes at the grocery store.

From the graph we get to know that Rupak's car is at rest for the $T=15$ min to $T=25$ initially and the again from $T=30$min to $T=45$min.

Since he first went to the library and then to grocery, therefore we can conclude that he was in the library from $T=15$ min to $T=25$ that is for a duration of $10$min and again at the grocery $T=30$min to $T=45$min that is for $15$ min