Question
The cost of fencing a rectangular field at the rate of Rs.
13/metre is Rs. 1560. The ratio of the length to the breadth is 7:5. Find the area of the field.Solution
Let the length and breadth be 7x metres and 5x metres respectively.
According to the question,
2 × (7x + 5x) = 1560 / 13
Or, 2 × 12x = 120
Or, 24x = 120
Or, x = 5 metres
Therefore, area = 7x × 5x = 35x² = 35 × 25 = 875 m²
The volume of a cube is 125 cm³. If the cost of painting the cube is Rs. 18 per cm², then find the cost of painting five faces of the cube.
If the ratio of areas of two circle is 4:25, then the ratio of their circumferences will be:
The diagonals of a rhombus measure 36 cm and 48 cm. A rectangle has a length of 32 cm, and its area is equal to the area of the rhombus. What is the per...
The length of the rectangle is triple its breadth. If the perimeter of the rectangle is 96 m, then find the area (in m2) of the rectangle.
A race track is in the shape of a rectangle with length of 13 metres and area of 1300 m2. A car takes 10 seconds to make one lap around the p...
Angle bisectors of Q and R meet at point S, inside the triangle PQR. If angle QSR = 118Ëš , then the measure of angle P is:
A giant circular wheel has a diameter of 56 metres. In how many revolutions will the wheel cover a total of 52.8 km?
The perimeter of a rectangular field is 480 meters and the ratio between the length and breadth is 5:3. The area of the field is:
Perimeter of a square field is 100 meters and the area of a rectangular field is 40% more than that of the square field. Find the area (in m2...
Which shape has a larger volume?
I) A rectangular cuboid with dimensions 5 cm, 9 cm, and 10 cm
II) A cube with a side length of 8 cm
Relevant for Exams:
