Saturday, May 15, 2010

MTH302 Business Mathematics & Statistics Assignment 2 Solution

12:55 PM | Posted by Xpert |
Question: 2 Marks 0

Why the inverse of following matrix is not possible

































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.


Question 5: Marks 0

Find amount of markup and selling price on an item that costs Rs. 2400 if there is a 40% markup on cost.


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



Question 6: Marks 0


An item sells for Rs. 3200. If the markup on the cost is 48%, find the cost and the amount of the markup.

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




Question 7: Marks 0

Find the single discount rate that is equivalent to the series discount of 5%, 7% and 11%.
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%



Question 8: Marks 05

An item that cost Rs. 2300 was marked up 38 % of the selling price. After some time the item is markdown 30 %. Calculate the sale price after markdown.
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
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