What marks the 13th fathom mark of a lead line?

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Multiple Choice

What marks the 13th fathom mark of a lead line?

Explanation:
A lead line measures depth in fathoms, and one fathom equals six feet. The marks along the line indicate each fathom, so the thirteenth mark corresponds to 13 fathoms. That is 13 × 6 = 78 feet. The other figures would correspond to different fathom counts (10, 14, and 15 fathoms, respectively). So the 13th fathom mark is 78 feet.

A lead line measures depth in fathoms, and one fathom equals six feet. The marks along the line indicate each fathom, so the thirteenth mark corresponds to 13 fathoms. That is 13 × 6 = 78 feet. The other figures would correspond to different fathom counts (10, 14, and 15 fathoms, respectively). So the 13th fathom mark is 78 feet.

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