Let the rate of swimming in still water be x km/hr Rate down-stream = (x + 13) km/hr Rate up-stream = (x – 13) km/hr According to the question, (x + 13) t = 3 (x – 13) × t x + 13 = 3x – 39 x = 26 km/hr
If the area of square is 441 cm² and the breadth of rectangle is 20% more and the length is 50% more than the side of the square, then find the the a...
Calculate the curved surface area of a cone with a diameter of 42 cm, and a height that is 1 cm shorter than half its diameter.
A cuboid has a breadth of 5 cm, and the combined total of its length and height is 23 cm. If the volume of the cuboid is 600 cm³, calculate the percent...
A rectangular park with length and breadth of 21 m and 26 m, is surrounded by a path of 5 m wide. Find the area of the path.
Quantity I: The total area of a Square and rectangle is 546 Sq cm. The side of the square is 14 cm. What is the sum of the perimeter of square and r...
A sphere is melted to form 81 identical cylinders. If radius of each cylindrical is 1/3rd of the radius of sphere and height of each cylinder...
The ratio of length to breadth to height of a cuboidal box is 6:5:4. If the total surface area of the cuboid is 1,392 cm², then ...
A barrel has 140 liters of mixture of alcohol and water, in which water is 10%. 30 litre of this mixture was taken out and replaced with “X”...
A rectangular water tank is 80 m x × 40 m. Water flows into it through a pipe of 40 sq.cm at the opening at a speed of 10 km/hr. The water level will ...
If the length of a rectangle becomes double and its breadth becomes three-fourth, then find the percentage increase in its area.
