Advertisements
Advertisements
Question
The area of a rectangular garden of length 40 m, is 1000 sqm. Find the breadth of the garden and its perimeter. The garden is to be enclosed by 3 rounds of fencing, leaving an entrance of 4 m. Find the cost of fencing the garden at a rate of 250 rupees per metre.
Advertisements
Solution
Length of the garden = 40 m
Area = 1000 sq m
⇒ lb = 1000
⇒ 40b = 1000
⇒ b = 25 m
Perimeter = 2 (l + b) = 2 (40 + 25) = 130 m
For 1 round of fencing leaving the entrance of 4 m, the length of wire required = 130 m - 4 m = 126 m
For 3 such rounds of fencing, 3 × 126 m = 378 m of wire required.
Rate of fencing 1 m = Rs 250
Rate of fencing 378 m = 378 × 250 = Rs. 94500
Thus, Rs 94500 is required for fencing the garden.
APPEARS IN
RELATED QUESTIONS
If the side of a square is 12 cm, find its area.
What is the value of a rectangular plot of land 75.5 m long and 30.5 m broad at the rate of 1000 rupees per square metre?
Find the area of a rectangle whose length and breadth are 12 cm and 4 cm respectively.
The area of a rectangular piece of cardboard is 36 sq cm and its length is 9 cm. What is the width of the cardboard?
Find the area in square metre of a piece of cloth 1m 25 cm wide and 2 m long.
Find the area of the following rectangle
length = 8 cm and breadth = 5 cm
The side of a square is 6 cm. The length of a rectangle is 10 cm and its breadth is 4 cm. Find the perimeter and area of both the square and rectangle
If length of a rectangle is halved and breadth is doubled then the area of the rectangle obtained remains same.
How many tiles whose length and breadth are 12 cm and 5 cm respectively will be needed to fit in a rectangular region whose length and breadth are:
70 cm and 36 cm
Ramesh grew wheat in a rectangular field that measured 32 metres long and 26 metres wide. This year he increased the area for wheat by increasing the length but not the width. He increased the area of the wheat field by 650 square metres. What is the length of the expanded wheat field?
