Let Honesty award=x, Regularity award=y, Hard work award=z
According to the question,
x+y+z=6000
3z+x=11000
2y=x+z
x+y+z=6000
x+0y+3z=11000
-x+2y-z=0
We can represent these equations using Matrices as:
\begin{bmatrix} 1 & 1 & 1 \ 1 & 0 & 3 \ -1 & 2 & -1 \end{bmatrix} \begin{bmatrix} x \ y \ z \end{bmatrix} = \begin{bmatrix} 6000 \ 11000 \ 0 \end{bmatrix}
AX=B
Therefore, X=A⁻¹B
Now |A|= 1(0+6) -1(-1+3) +1(2+0) = 6-2+2 = 6 ≠ 0
Therefore, A⁻¹ exists.
Adj.A = \begin{bmatrix} 6 & 3 & 3 \ 2 & 0 & -4 \ 2 & -1 & 1 \end{bmatrix}
A⁻¹ = (1/|A|)(Adj.A) = (1/6)\begin{bmatrix} 6 & 3 & 3 \ 2 & 0 & -4 \ 2 & -1 & 1 \end{bmatrix}
X=A⁻¹B = (1/6)\begin{bmatrix} 6 & 3 & 3 \ 2 & 0 & -4 \ 2 & -1 & 1 \end{bmatrix} \begin{bmatrix} 6000 \ 11000 \ 0 \end{bmatrix} =(1/6)\begin{bmatrix} 36000+33000+0 \ 12000+0+0 \ 12000-11000+0 \end{bmatrix} =(1/6)\begin{bmatrix} 69000 \ 12000 \ 1000 \end{bmatrix} = \begin{bmatrix} 11500 \ 2000 \ 500/3 \end{bmatrix}
There seems to be a mistake in the question or the solution provided earlier.
Let's use the correct equations:
x + y + z = 6000
x + 3z = 11000
x + z = 2y
Solving these equations simultaneously gives us:
x = 500
y = 2000
z = 3500
Therefore, Award for honesty = Rs.500
Award for regularity = Rs.2000
Award for hard work = Rs.3500
One more value can be punctuality.