Time taken by pipe C to empty the full pool = 35 × 2 = 70 minutes Let the capacity of pool = 70 units Number of units of water filled by pipe A alone in one minute = 70/35 = 2 units Number of units of water filled by pipe B alone in one minute = 70/10 = 7 units Number of units of water emptied by pipe C alone in one minute = 70/70 = 1 units Required time taken = 70/(2 + 7 – 1) = 8.75 minutes
A square has an area of 289 cm². The rectangle's breadth is 20% more, and its length is 50% more than the square's side. What is the area ratio of the ...
The sum of the perimeters of a square and a rectangle is 118 metres. If the sum of the length and breadth of the rectangle is 31 cm, then find the area ...
A hollow cylindrical tube 20 cm long is made of iron and its external and internal diameters are 8 cm and 6 cm respectively. The volume (in cubic cm) of...
Ramesh walked 6 km to reach the station from his house, then he boarded a train whose average speed was 60 km/h and thus he reached his destination. In ...
Calculate the perimeter of a circular field with an area of 3675 square meters, using an approximation of π as 3.
The perimeter of a rectangle of length 2(x + 4) cm and breadth 2(x + 3) cm is double the perimeter of a square of area 484 cm². Find the area of the re...
If x4 – 62x2 + 1 = 0, then a value of x 3 + x -3 can be:
A wire is in the form of square with side 11 cm. It is bent to form a circle. What is the radius of the circle?
A circular park is having the circumference of 110m. A uniform path of width 3.5m has been made around the park. Find the area of this path?
The length and width of a rectangle are in the ratio of 11:8. Additionally, the length of the rectangle is 54 cm less than its perimeter. Using this in...
