Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • NCERT
  • A path 1 m wide is built along the border and inside a square garden of side 30 m. Find: (ii) the cost of planting grass in the remaining portion.

Q 5. A path $1 m$ wide is built along the border and inside a square garden of side $30$ m. Find:
(ii) the cost of planting grass in the remaining portion of the garden at the rate of $R s .40$ per $\mathrm{m}^2$.

Answers (1)

best_answer

It is given that side of square garden is 30 m
We know that area of square is $=a^2$
$\Rightarrow a^2=(30)^2=900 m^2$----(i)

Now, area of square garden without $1$ m boarder is
$\Rightarrow a^2=(28)^2=784 \mathrm{~m}^2$------(ii)
Area of path is (i) - (ii)
$\Rightarrow 900-784=116 m^2$
Therefore, the area of the path is $116 \mathrm{~m}^2$
Now, the cost of planting grass in the remaining portion of the garden at the rate  Rs $40$ per $m^{2}$ is 
$\Rightarrow 784 \times 40=31360$ Rs
Therefore, the cost of planting grass in the remaining portion of the garden at the rate of Rs $40$ per $m^{2}$ is Rs $31360$.

Posted by

Riya

View full answer

Similar Questions

Latest Question