The surface area of a sphere is same as the curved surface area of a right circular cylinder whose height and diameter are 12 cm each. The radius of the sphere is?

A circular path runs round a circular garden. If the difference between the circumference of the outer circle and inner circle is 88m. Find the width of Path?

 Four circles having equal radii are drawn with centres at the four corners of a square. Each circle touches the other two adjacent circle. If remaining area of the square is 168 cm square, what is the size of the radius of the circle? (in centimeters ) (take π = 22/7) 

The length of the floor if a rectangle hall is 10 m more than its breadth. If 34 carpets of size 6 × 4m are required to cover the floor of the hall, then find the length and breadth of the hall?

A cylindrical jar of radius 15 cm is filled with water up to a height of 25 cm. 15 spherical balls of radii 2 cm each are immersed in the jar. Find the new level to which water is filled in the jar. [Take π = 3.]?

The slant height of a right circular cone is 10 m and its height is 8 m. Find the area of its curved surface?

Surface area of a sphere is 2464 cm2. If its radius is doubled, then the surface area of the new sphere will be?

The percentage increase in the surface area of a cube when each side is doubled is?

 I have a big box of volume 8160 cu.cm. How many small pizza boxes of dimension 4cm X 3cm X 2 cm can I store in this big box?

The radii of the bases of a cylinder and a cone are in the ratio 3: 4. If height of the cylinder and cone are in the ratio 2: 3, then their volumes are in the ratio….?

What is the ratio of the volumes of a right cylinder to that of a right cone having equal diameters?