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

[BTGmoderatorLU]

Source: Official Guide

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

The OA is D

[Scott@TargetTestPrep]

Source: Official Guide

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

The OA is D

Solution:

We can let r = 0 and s = 4. So p = 2 and t = 1. Therefore,

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

Answer: D