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The points P, Q, R, S, T, U, A and B on ...

The points P, Q, R, S, T, U, A and B on the number line are such that, TR = RS = SU and AP = PQ = QB. Name the rational numbers represented by P, Q, R and S.

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We are given, `TR = RS = SU`
`T = -1 = (-1**3)/(1**3) = -3/3`
`U = -2 = (-2**3)/(1**3) = -6/3`
So, numbers between `T` and `U` will be `-4/3` and `-5/3`.
As, `R` is closer to `T` than `S`.So, `R = -4/3`
`S = -5/3`
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