1) Here length method gives the capacity of an array or no. Of elements it can store.

2) 3 arrays every array with 6 elements (2 by 3 array). Two rows and three columns.

Neha said:
(Dec 19, 2013)

How's it will be 18?

Moinak said:
(Jan 9, 2014)

3 arrays and if every array has 6 elements the total number of elements = 3*6 = 18. I think this is the answer.

Avdhut said:
(Feb 2, 2014)

It is 3d array so total 9 element so every element take 2 byte size because it is int type array so answer is 18.

Mr. Az said:
(Jul 9, 2014)

Well, its because; it is a 3D array with dimensions 3,2,3 so simply its get multiplied 3*2*3 = 18 i.e: Option C.

Note: In C# int requires 4 bytes of memory.

Nik said:
(Nov 11, 2014)

It is third dimension array right?

Then how can we decide it's length as 18?

Yash said:
(Dec 24, 2015)

I am not getting this at all. Can anyone please explain how 3D array looks like and how come its 18?

Sum said:
(Oct 19, 2016)

3D array means 3 dimensional you can see the question in the square braces two commas is there that's the reason its called 3 dimesion array and 18 is the answer simply multiplied.

Prem said:
(Sep 15, 2018)

The answer is 4.

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