If Zeba were younger by $5 \mathrm{yr}.$ than that she really is, then the square of her age (in years) would have been $11$ more than five times her actual age, what is her age now?

At present Asha's age ( in years) is $2$ more than the square of her daughter Nisha's age. When Nisha grows to her mother's present age. Asha's age would be one year less than $10 \mathrm{times}$ the present age of Nisha. Find the Present ages of both Asha and Nisha.

In the centre of a rectangular lawn of dimensions $50 \mathrm{m}\times 40 \mathrm{m}$, a rectangular pond has to be constructed, so that the area of the grass surrounding the pond would be $1184 {\mathrm{m}}^2$ [see figure]. Find the length and breadth of the pond.

At $\mathrm{t} \min$past$2 \mathrm{pm}$, the time needed by the minute hand of a clock to. Show $3 \mathrm{pm}$ was found to be $3 \min$less than $\frac{t^2}{4}$ min. Find $t$.