6 Find x, if [
]
1
0
2
5
1
0
2
1
4
O
2
0
3
1
x
x

  

  
−
−
=

  

  

  
7 A manufacturer produces three products x, y, z which he sells in two markets Annual sales are indicated below:
Market
Products
I
10,000
2,000
18,000
II
6,000
20,000
8,000
Rationalised 2023-24
MATRICES         73
(a) If unit sale prices of x, y and z are ` 2