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Question

Three collinear points A,B and C ares such that point B is between points A and C. The distance from A to B is 8 more than 4 times the distance from B to C and the distance from A to C is 5 times the distance from B to C. What is the distance from A to C?

A
4
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B
20
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C
16
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D
24
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Solution

The correct option is B 20
From "length of segment AC is 5 times the length of segment of BC" it is clear that AC is the longer part.
So call the endpoints of your line A and C and place B between them.
Let BC=x
Then AC=5x and AB=4x
Then it is given that, " the distance from point A to point B is 8 more than twice the distance from point B to point C "
AB=2(BC)+8
4x=2x+8
2x=8
x=4
Then AC=5x=20.
Hence, the distance from A to C is 20.

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