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Two farmers Ramkishan and Gurpreet singh...

Two farmers Ramkishan and Gurpreet singh cultivates only three varieties of rice namely Basmati , perimal and Jirasar .The sales (in Rs.) of these varieties of rice by both the farmers in the months of September October are given by the following matrices A and B.

(i) Find the combined sales in September and October for each farmer in each variety.
(ii) In which month the selling is maximum.

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The correct Answer is:
(i) `[{:(15","000,30","000,36","000),(70","000,40","000,20","000):}]`
(ii) In september month
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Two farmers Ramkishan and Gurcharan Singh cultivates only three varieties of rice namely Basmati, Permal and Naura. The sale (in Rupees) of these varieties of rice by both the farmers in the month of September and October are given by the following matrices A and B. A=overset("Septermber Sales (in Rupees)")overset("Basmati Permal Naura")([("10,000","20,000","30,000"),("50,000","30,000","10,000")]){:("Ramkishan"),("Gurcharan Singh"):} B=overset("October Sales (in Rupees)")overset("Basmati Permal Naura")([("5,000","10,000","6000"),("20,000","10,000","10,000")]){:("Ramkishan"),("Gurcharan Singh"):} (i) Find the combined sales in September and October for each farmer in each variety. (ii) Find the decrease in sales from September to October. (iii) If both farmers receive 2% profit on gross sales, compute the profit for each farmer and for each variety sold in October.

Which of the following in true for Golden rice ?

KUMAR PRAKASHAN-MATRICES -PRACTICE WORK
  1. If A=[{:(2,3,-4),(5,1,0),(3,-2,5):}]andI=[{:(1,0,0),(0,1,0),(0,0,1):}]...

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  2. Three friends Ram , Shyam and Rahul went to a shop .Ram purchased 12 d...

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  3. Two farmers Ramkishan and Gurpreet singh cultivates only three varieti...

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  4. A=[{:(5,-1),(6,7):}],B=[{:(2,1),(3,4):}]andC=[{:(1,3),(-1,4):}] then ...

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  5. A=[{:(2,3,-1),(1,-2,4):}]andB=[{:(1,4),(2,5),(-1,3):}] then verify tha...

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  6. If A=(1)/(3)[{:(1,2,2),(2,1,-2),(-2,2,-1):}] then show that A A'=A'A=...

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  7. If A=[{:(1,2,5),(5,1,1),(3,0,4):}] then find A-2A'.

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  8. For the matrices A and B, verify that (AB)'=B'A. (i) A=[{:(1),(3),...

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  9. Express the matrix B=[{:(2,-2,-4),(-1,3,4),(1,-2,-3):}] as the sum of...

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  10. Show that all the diagonals elements of a skew symmetric matrix are ze...

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  11. Prove that if A is a square matrix then ,(i) (A+A') is a symmetric met...

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  12. Express the matrix A=[{:(2,3,4),(5,6,-2),(1,4,5):}] as the sum of a s...

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  13. If a matrix A is a symmetric matrix then show that A^(n) is also a sy...

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  14. Using elementary transformations find the inverse of each of the follo...

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  15. Find the inverse of [{:(7,4),(1,-2):}]

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  16. Find the inverse of each of the following matrices [{:(-1,2),(-3,5):}...

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  17. Find adjoint of each of the matrices [{:(0,1,2),(1,2,3),(3,1,1):}]

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  18. Find inverse of [{:(1,2,1),(3,2,3),(1,1,2):}]

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  19. If A=[{:(costheta,sintheta),(-sintheta,costheta):}] then prove that ...

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  20. Find the matrix X such that , X[{:(5,-7),(-2,3):}]=[{:(-16,-6),(7,2)...

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