A) 3
B) 4
C) 5
D) 6
Correct Answer: B
Solution :
[b] \[\because \,20=1\times 20=2\times 10=4\times 5=5\times 4\] \[=10\times 2=20\times 1\] Out of this number of rows is even so possible cases are \[2\times 10,\,\,4\times 5,\,\,10\times 2\] and \[20\times 1\]. So number of matrices are 4.You need to login to perform this action.
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