Let the usual speed be x km/hr New speed = 125% of x = 5x/4 km/hr Distance = 420 km According to the question 420/x – 420/(5x/4) = 90/60 420 x [(5 – 4)/5x] = 3/2 Therefore, x = 420 x (1/5) x (2/3) = 56 km/hr
A hemisphere has a total surface area of 604.8 cm². Calculate the volume of a sphere that has the same radius as the given hemisphere. (Take π = 3.15)...
The ratio of length to breadth of a rectangle is 6:9. If the sum of the length and breadth of the rectangle is 45 cm, then find the area (cm 2
The volume of a cube is 2744 cm 3 in which a maximum possible size of circle is drawn on each face. The circle drawn on each face of the ...
Two third part of cylinder is full of water. When we tilt the cylinder in such a way that the water becomes diagonal shape, in this process 87.5 litre o...
A prism and a pyramid have the same base and the same height. Find the ratio of the volumes of the prism and the pyramid.
The height of a right circular cylinder is 12m and also three times the sum of the areas of its two end faces is equal to twice the area of its curved s...
Three cubes of metal whose edges are 3cm, 4cm and 5cm. respectively are melted and a single cube is formed. What is the length of the edge of the newly ...
A cylindrical water tank has a radius of 7 m and a height of 10 m. How much water will the tank hold in liters?
The volume of a right circular cylinder is given as 64π√3 cm³. The radius of the cylinder's base is 4 cm. Determine the slant height of the cylinder...
A wire is bent to form a square whose sides are of 88 cm. If the same wire is bent to form a circle, then find the area (in cm2) of the circl...
