Question

A number line contains points Q, R, S, and T. Point Q is on the coordinate 24, R is on the coordinate 28, S is on the coordinate 29, T is on the coordinate 42. Find the probability that a point chosen at random on QT is on ST. Express your answer as a percent.

A. 25%
B. 42.2%
C. 50%
D. 72.2%

Answer 1

D. 72.2%

Explanation:

Answer 2

Answer: Option 'D' is correct.

Explanation:

Since we have given that

A number line contains points Q, R, S, and T

Point Q is on the coordinate 24

Point R is on the coordinate 28

Point S is on the coordinate 29

Point T is on the coordinate 42

So, According to given condition,

QT is on the coordinate is given by

`42-24=18`

ST is on the coordinate is given by

`42-29=13`

So, probability that a point chosen at random on QT is on ST is given by

`(13)/(18)* 100\\\\=72.22\%`

Hence, option 'D' is correct.