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.

Each part which is between the two numbers is divided into 3 parts.
Therefore, A= 6/3, P=7/3, Q=8/3 and B=9/3
Similarly T=-3/3, R=-4/3, S=-5/3 and U = -6/3
Thus, the rational numbers represented P, Q, R and S are 7/3, 8/3, -4/3 and -5/3
respectively.

Class 7 Maths Chapter 9 Exercise 9.1

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