If P, Q, R are three points on a line and Q lies between P and R, then which of the following is equal to PR - PQ?

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PQR

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Solution

The correct option is C QR
Weknow that,
Euclid's fourth axiom states that, things which coincide with one another are equal to one another.

Therefore, PQ + QR = PR.

Subtracting PQ from bot the sides.
PR - PQ = PQ + QR - PQ
PR -PQ = QR.

Hence, PR -PQ = QR.

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If P, Q, R are three points on a line and Q lies between P and R, then $P R - P Q =$ ______.

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