A number line is shown in the question.
r s t
r, s and t are in the number line as shown above.
r is to the left of s and s is to the left of t.
On the number line shown above, is zero halfway between r and s?
1. s is to the right of zero.
2. The distance between t and r is same as the distance between t and -s.
Please move your mouse over the darkened spot below to view the answer.
I chose B
But the correct answer is C.
With statement 2, we can infer that r = -s, because r is to the left of s in the number line. So s can not be negative. If s were negative, r would be to the right of s. So, zero should be halfway between r and s. Case closed.
Your explanation is much appreciated.
Thanks
Paddy
r s t
r, s and t are in the number line as shown above.
r is to the left of s and s is to the left of t.
On the number line shown above, is zero halfway between r and s?
1. s is to the right of zero.
2. The distance between t and r is same as the distance between t and -s.
Please move your mouse over the darkened spot below to view the answer.
I chose B
But the correct answer is C.
With statement 2, we can infer that r = -s, because r is to the left of s in the number line. So s can not be negative. If s were negative, r would be to the right of s. So, zero should be halfway between r and s. Case closed.
Your explanation is much appreciated.
Thanks
Paddy
Paddy Srinivas












