CAT (QA) PYQs

The cost of fencing a rectangular plot is $200$ per ft along one side, and $100$ per ft along the three other sides. If the area of the rectangular plot is $60000$ sq. ft, then the lowest possible cost of fencing all four sides, in INR, is

If a rhombus has area $12 \mathrm{sq} \mathrm{cm}$ and side length $5 \mathrm{~cm}$, then the length, in cm, of its longer diagonal is

Let $ABCD$ be a parallelogram. The lengths of the side $AD$ and the diagonal $AC$ a $10$ cm and $20$ cm, respectively. If the angle $\angle ADC$ is equal to $30^\circ$ then the area of the parallelogram, in sq. cm, is