Question 1202204
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The response from the other tutor shows correct calculations; but in fact his final answer is not the answer the problem asks for.<br>
It is true, as that tutor says, that the volume of the larger pyramid is 75 times AS LARGE AS the smaller pyramid.  But the question that is asked is how many times the volume of the larger pyramid is GREATER THAN the volume of the smaller pyramid.  That answer is 74.<br>
The problem here is that "x times as large as" and "x times larger than" are sloppily used in everyday language to mean the same thing; but they mean different things.<br>
If one number is x, then the number 5 times AS LARGE AS x is 5 times x, or 5x.<br>
But if one number is x, then the number 5 times LARGER THAN  is x, plus 5 times x, which is x + 5x = 6x.<br>