If Length and width of the book is given, then of-course we could have tried solving it. But first thing length and width is not given here separately, just knowing the volume wont help,
Like for an example if we have rectangular box with dimensions 4, 5 and 6 and number of 2 units cube placed inside the box is not (Volume of cuboid / volume of cube = 4 * 5 * 6 / 2 * 2 *2 ) = 15.
There are only 12 boxes could fit inside it(Try visualizing it), so what I want to say here is knowing only the volumes may not help, you need to know the dimensions and how it is placed as well.
Hope it helps.
BenchOfilada wrote:
Byjus wrote:
Hi,
Question: No. of books fit inside a 2 feet long cubical box ?
Clearly the answer for the question is E. because no information about the shape of the book. Just knowing the thickness and volume doesn’t help to solve this question.
To solve this question, we need to understand length, width or atleast the shape of book like rectangular or cubical shape etc.
Statement I is insufficient:
The thickness of each book is 2 inches.
We don’t know any information of length or width of the book. As the length and width changes the number of books in the box will change. So not sufficient.
Statement II is insufficient:
Each book has a volume of 0.9 feet.
Again no information about the shape of the book. We can’t really find the length and width of the book. We can’t just consider it as a cube shape.
Together still not sufficient.
No extra information.
So the answer is E.
Hope this helps.
For Statement II, isn't it supposed to be sufficient? The fact that the volume is already given, one can calculate how many books can fit in it no matter the length, width, and height of the book since they all have the same volume.
Assume length, width, and height are given, wouldn't this problem be solved by dividing the volume of the cube with the volume of each book?
I don't understand why E.
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