MTH302 Business Mathematics & Statistics Assignment 2

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Solution

Answer Of Q.1


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Answer of Q.No. 02

For an inverse of Matrix it is necessary the number of rows must be equal to number of rows. In this matrix number of rows are 4 & number of Column are 3. so it is not possible the inverse of give matrix.


Answer of Q.No.03



1-Write the value of first column in cell 5 in A: 4, 7 in A: 5 and 1 in A: 6
2-Simlarly the value 2nd Column will be written 9 in B: 4, 1 in B: 5 and 2 in B: 6
3-Finally the value of 3rd column will put as 3 in C: 4, 8 in C: 5 and 4 in C: 6
4-Click the cell A: 7 and drag the mouse keeping press left button of Mouse to C: 9
5-Then press F2 in A: 7 and write the formula =MINVERSE (A: 4: C: 6)
6-After writing formula Press CTR+SHIFT+ENTER keys simultaneously the formula will appear in formula as {=MINVERSE (A: 4: C: 6)} which shows that job has been done in correct manner.

Answer of Q No.05

Selling price = Cost+ (cost * % of mark up)
=2400+ (2400*.4)
=2400+960
=3360
So the mark up is =960
Selling price =3360

Answer Q.No.06

First we calculate the Markup

Mark up =% age of mark up * Selling Price
=.48*3200=1536
Now the cost
Price is = Selling Price-Mark Up
=3200-1536=1664

Answer Q.No.7


Equivalent Discount Rate = (1-d1) (1-d2) (1-d3)
= 100(1-5%) (1-7%) (1-11%)
=100(.95)(.93)(.89)
=78.63
% Discount =100-78.63
=21.37%

Answer Q.No.8

Selling Price = Cost+(Cost*%of Mark Up)
=2300+(2300*.38)
=2300+874
=3174

Selling Price after mark down =Selling price-(selling price*%of mark down)
=3174-(3174*.30)
=3174-952.20=2221.80