Business Mathematics Icom Part 1 Online Test With Answers

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Business Mathematics Icom Part 1 Online Test

Sr. # Questions Answers Choice
1 In decimal system base of system is: 2 5 8 10
2 2 x 10 + 3 x 10o =. 23 24 25 26
3 A square matrix whose elements below the main diagonal are all zero is called. Upper triangular matrix Lower triangular matrix Rectangular Row matrix
4 A + 0 is equal to: 0 A O + A None of these
5 If Ax = B then x is BA<sup>-1</sup> AB B/A A<sup>-1</sup> B
6 I3 x | I3 | = ? I<sub>3</sub> 0 1 None of these
7 If A = [aij], then A+ is : [aij] [bji] [aji] [aii]
8 Do AB = BA? Never Yes May or may not None of these
9 Do (A + B) + C = A + (B + C)? No Yes May or may not Never
10 If A is  a singular matrix then: A = 0 |A| = 0 A&nbsp;≠ 0 |A|&nbsp;≠ 0
11 Any matrix "A" is a symmetric matrix if: A = -A A = A<sup>t</sup> A = -A<sup>t</sup> A = A<sup>-t</sup>
12 Order of the matrix having m rows and n columns is: m + n m - n m / n m x n
13 Formula to calculate compounded amount is: P(1 + i)<sup>n</sup> P(1 + i)<sup>-n</sup> R (1 + i) P (1 - i)<sup>n</sup>
14 90.5% in common fraction: 0.9 10/9 9/10 181/200
15 1 : 3 is same as: 3 to 1 3 : 8 1 to 3 None of the above
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