Baten80 wrote:

On the number line, if r<S, if p is the halfway between r and s, and if t is the halfway between p and r, then s-t/t-r=

What i will the s-t either s minus t or s to t. please help.

1/4

1/3

4/3

3

4

PLEASE FORMAT THE QUESTIONS PROPERLY!Also what do you mean by "What i will the s-t either s minus t or s to t"?

Original question is:

On the number line, if r<s, if p is halfway between r and s, and if t is halfway between p and r then (s-t)/(t-r)=A. 1/4

B. 1/3

C. 4/3

D. 3

E. 4

Let

r=0 and

s=4 -->

p is halfway between

r and

s:

p=2;

t is halfway between

p=2 and

r=0:

t=1;

(s-t)/(t-r)=(4-1)/(1-0)=3.

Answer: D.

P.S. On the GMAT we can often see such statement:

k is halfway between

m and

n on the number line. Remember this statement can ALWAYS be expressed algebraically as:

\frac{m+n}{2}=k.

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