The correct interest on capital should be calculated at 10\% p.a., but it was credited at 6\% p.a.
The difference needs to be adjusted. \[ {Difference in Interest on Capital} = {Fixed Capital} \times (10\% - 6\%) \] \[ {Anvi's Interest Adjustment} = rupee 4,00,000 \times 4\% = rupee 16,000 \] \[ {Vani's Interest Adjustment} = rupee 5,00,000 \times 4\% = rupee 20,000 \] \[ {Karan's Interest Adjustment} = rupee 6,00,000 \times 4\% = rupee 24,000 \]
Adjusting journal entry:

Narration: Adjustment for under-crediting of interest on capital for Anvi, Vani, and Karan.

A racing track is built around an elliptical ground whose equation is given by \[ 9x^2 + 16y^2 = 144 \] The width of the track is \(3\) m as shown. Based on the given information answer the following: 
(i) Express \(y\) as a function of \(x\) from the given equation of ellipse.
(ii) Integrate the function obtained in (i) with respect to \(x\).
(iii)(a) Find the area of the region enclosed within the elliptical ground excluding the track using integration.
OR
(iii)(b) Write the coordinates of the points \(P\) and \(Q\) where the outer edge of the track cuts \(x\)-axis and \(y\)-axis in first quadrant and find the area of triangle formed by points \(P,O,Q\).