How many number can be store in a[6][4]

Answer 1

You can store 24 numbers in the given array 2-D array as it comprises of 6 rows and 4 columns. Intersection of a row and column makes a cell and one cell stores one number.

It can be viewed as

a = | x x x x x x |
| x x x x x x |
| x x x x x x |
| x x x x x x |

Answer 2

6 ×4 numbers