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Non Graded Assignment 2

Question 1:

For the matrix , verify that
1) det (AB) =det (A).det(B)

2) det (A+B) ≠det (A)+det(B)


Question: 2

Three families P, Q and R share 480 kg of rice. Q receives twice as much as P and R receives half much rice as Q. How much rice does each family get?



Question: 3

In an automobile dealership, the most popular passenger cars are Brand A, B and C. Because buyers normally bargain for the best price, the average sales price for each brand is $20904, $11757, and $27859 respectively.

Table shows the sales for 3-month period.

Month A B C
1 25 60 50
2 30 40 60
3 45 53 58






What are revenues from sale of Brands A, B and C for a 3month period?

Question 4:

An item whose list price is Rs.500 is available at two successive discounts of Rs.10% and 20%.Find amount paid by the customer.



Question 5:

A jewelry chest costs Rs. 840 and has a 20% markup on the selling price.
Find the markup amount and the selling price of the chest.

Solution at
http://vuhelp.com/forum/viewtopic.php?f=5&t=61
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