Question 1144705
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Of course you would have to know the volume of each M&M if you wanted a reasonably accurate estimate of the number that would fit in the jar.<br>
However, with the given answer choices, only a little bit of knowledge about the size of an M&M is required to choose the correct answer.<br>
The volume of the jar in cm^3 is 7*7*6.5 = 318.5.<br>
If the correct answer were A, then the minimum volume of each M&M would be about 3.185 cm^3, which is far too large.<br>
If the correct answer were B, then the minimum volume of each M&M would be about 0.03185 cm^3.  That is far smaller than an actual M&M; so answer B is reasonable for an UPPER LIMIT of the number of M&M's.