Question

In a garden 60%are Rose plants and 15% are Lily plants and the rest are marigold. If the number of Lily plant is 90, find the total plants, the number of Rose plants and Marigold plants in the garden.

Answer 1

$$\begin{gathered} \mathrm{Let}\mathrm{the}\mathrm{total}\mathrm{plants}=\mathrm{x} \\ \%\mathrm{of}\mathrm{Rose}\mathrm{plants}=60 \\ \%\mathrm{of}\mathrm{Lily}\mathrm{plants}=15 \\ \mathrm{So},\%\mathrm{of}\mathrm{Marigold}\mathrm{plants}=100-\left(60+15\right)=100-75=25 \\ \mathrm{A}.\mathrm{T}.\mathrm{Q} \\ \frac{15}{100}\times \mathrm{x}=90 \\ \mathrm{x}=\frac{90\times 100}{15}=600 \\ \mathrm{So},\mathrm{total}\mathrm{plants}=\mathrm{x}=600 \\ \mathrm{Number}\mathrm{of}\mathrm{Rose}\mathrm{plants}=\frac{60}{100}\times \mathrm{Total}\mathrm{plants} \\ =\frac{60}{100}\times 600=360 \\ \mathrm{Number}\mathrm{of}\mathrm{Marigold}\mathrm{plants}=\frac{25}{100}\times \mathrm{Total}\mathrm{plants} \\ =\frac{25}{100}\times 600=150 \end{gathered}$$