Confusion over zoom

[Fotografer]

<b><font face="Arial"><font color="black">Nikon Nikkor 55-300mm F4.5/5.6 AF-S DX G ED VR</font></font></b></p>
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<p><b><font face="Arial">OFFERS A 5.5X ZOOM</font></b></p>
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<p><b><font face="Arial">&lt;H3 class=product&gt;<font face="Arial"><font color="black">Nikon Nikkor 55-200mm F4/5.6 AF-S DX G IF ED VR</font></font></font></b><font face="Arial"></p>
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<p><b><font face="Arial">OFFERS 3.6X ZOOM</font></b></p>
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<p><b><font face="Arial">Now why do the zsooms differ between the two lenses, if they are the same size?</font></b></p>
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