Advertisements
Advertisements
प्रश्न
The perimeter of a rectangular field is 500 m and its length = 150 m. Find:
(i) its breadth,
(ii) its area.
(iii) cost of ploughing the field at the rate of ₹1.20 per square meter.
Advertisements
उत्तर
(i) Perimeter of a rectangle = 2 x (length + breadth)
⇒ 500 m = 2 x (150 m + breadth)
⇒ 250 m – 150 m = breadth
∴ breadth = 100 m
(ii) Area of rectangular field = length x breadth
= 150 m x 100 m
= 15000 m²
(iii) Cost of ploughing the field at the rate of
= ₹ 1.20 per square m²= area of the field x rate of ploughing
= 15000 m² x ₹ 1.20 per square metre
= ₹ 15000 x 1.20 = ₹ 18000
APPEARS IN
संबंधित प्रश्न
The area of a small rectangular plot is 84 m2. If the difference between its length and the breadth is 5 m; find its perimeter.
Each rectangular tile is 40 cm long and 30 cm wide. How many tiles will be required to cover the floor of a room with length = 4.8 m and breadth = 2.4 m.
The cost of flooring a hall of ₹64 per square meter is ₹2,048. If the breadth of the hall is 5m, find:
(i) its length.
(ii) its perimeter.
(iii) cost of fixing a border of very small width along its boundary at the rate of ₹60 per square meter.
The length of a rectangle is three times its breadth. If the area of the rectangle is 1875 sq. cm, find its perimeter.
Find the cost of fencing a rectangular park of length 250 m and breadth 175 m at the rate of Rs. 12 per metre.
If the length of a rectangle is 20 m and its width is 12 m, what is its perimeter?
The length of a rectangular plot of land is 50 m and its width is 30 m. A triple fence has to be put along its edges. If the wire costs 60 rupees per metre, what will be the total cost of the wire needed for the fence?
Find the perimeter and the area of the rectangle whose length is 6 m and breadth is 4 m
If every side of a rectangle is doubled, then its area becomes _______ times
There is a rectangular lawn 10 m long and 4 m wide in front of Meena’s house (see the figure). It is fenced along the two smaller sides and one longer side leaving a gap of 1 m for the entrance. Find the length of fencing.
