l = − . x . x Exercise . .(i) x – (ii) x (iii) ( , ( , x y z (iv) ( , ( , x y z = (v) ( , x y z = − .
Cost per unit of labour is ₹ Cost per unit of capital is ₹ . Amount invested at % is ₹ , Amount invested at % is ₹ , . hourly charges for horse riding is ₹ and AVT riding is ₹ . x y z , , , ,