Question

You are driving away from home at a constant velocity of 100 km per hour. The first landmark you see is your favorite restaurant which happens to be 10 km from your house. Which of the following sequences describes the distances you cover at intervals of one hour, starting when you pass the restaurant?

Answer 1

You are driving away from home at a constant velocity of 100 km per hour. The first landmark you see is your favorite restaurant which happens to be 10 km from your house. Which of the following sequences describes the distances you cover at intervals of one hour, starting when you pass the restaurant?

A. 100, 200, 300, 400, 500, ...
B. 10, 110, 210, 310, 410, ...
C. 10, 100, 200, 300, 400, ...
D. 15, 30, 60, 120, 240, ...
E. 20, 30, 40, 50, 60, ...

Answer 2

is there any multiple choice because the phrase "which of the following.."?
I'll assume not and try to help!

ok!

Answer 3

so the phrase "intervals of one hour" means that each sequence of numbers must be 100 apart from the next number because in 1 hour, we travel 100km.
so 20, 30, 40 is ruled out because those are intervals of 10, make sense?

Answer 4

So understanding this concept of '1 hour intervals' which answers can you eliminate?

Answer 5

so 20 30 40 is not the answer?
@DemolisionWolf

Answer 6

good, yes.
so that eliminates 'E' from being an answer, what others can you eliminate using the concept of 'each number of the answer needs to be 100 more than the prior number in that answer'

Answer 7

D&A @DemolisionWolf

Answer 8

D can be eliminated, yes, but A we can keep becuase 100 to 200 is a difference of 100 and 200 to 300 is a difference of 100 and 300 to 400 is a difference of 100, and so on; so that means that A does follow the concept of '1 hr intervals'

I know this may be hard, but if you can understand this idea of what I am saying, there is only one possible outcome for the answer to be out of the 5 choices

Answer 9

A.
The clock resets at the 10 km point.