The end-point P of a line-segment PQ is against the 4 cm mark and the end-point Q is against the mark indicating 14.8 cm on a ruler. The length of the segment PQ is ____.

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Detailed Solution

The end-point P of a line-segment PQ is against the 4 cm mark and the end-point Q is against the mark indicating 14.8 cm on a ruler. The length of the segment PQ is 10.8 cm.
Given, P is at the 4 cm mark.
Q is at the 14.8 cm mark.
Let O be the point at the 0 cm mark.
OP = 4 cm and OQ = 14.8 cm
The length of PQ is OQ - OP = 14.8 - 4
= 10.8 cm
So, the length of PQ is 10.8 cm.
Hence, the correct answer is 10.8 cm.

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