Question
The diameter of the base of a cylindrical drum is 70 cm
and its height is 10 cm. The drum is full of water and the water from the drum is transferred to ‘n’ cuboidal tanks having dimension 10 cm × 5 cm × 11 cm, each. Find the value of ‘n’.Solution
Radius of the base of the cylindrical drum = 70/2 = 35 cm According to the question, Volume of cylindrical drum = volume of ‘n’ cuboidal tanks Therefore, (22/7) × 35 × 35 × 10 = n × 10 × 5 × 11 Or, n = 38500/550 = 70
The volume of cone is 1900.8 cm3. If its height is 1.4 cm then find the radius of the cone.
A rectangular field is 40 m long and 25 m wide. Find the cost of fencing it three times all around at the rate of Rs. 12 per metre.
The radius of the base of a cone is 6 cm, and its slant height is 10 cm. What is the surface area of the cone?
A rectangular park is 60 m long and 40 m wide. A path of uniform width 2 m is constructed inside the park along all four sides. Find the area of the path.
Ratio of length to width of a rectangular field is 3:2. If the perimeter of the field is 360 metres, then find the area (in m2) of the field.
Inside a square land having perimeter equal to 64 metres, leaving aside a circular land of radius 7 metres, the remaining land needs to be levelled at a...
The length of a rectangle is 7 cm more than the radius of a circle. The perimeter of the rectangle is 60 cm, and the ratio of its length to breadth is 7...
A solid spherical gold ball having a radius of 10 cm is melted to form smaller balls of radius 5 mm each. Find the number of such...
A rectangular ground is 90 metre long and 70 metre broad. If two 10 metre wide paths one parallel to the breadth and one parallel to the length, of the�...
When a smaller number divides a larger number, we get a quotient of 6 and a remainder of 5. Find the smaller number if the difference between the two nu...
Relevant for Exams:
