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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%

2 Answers

2 votes

Answer:

D. 72.2%

Explanation:

User Pat McG
by
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5 votes

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.

User Jljohnstone
by
8.2k points

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