Volume & Surface Area Questions and Answers
Practice ModeShowing 10 of 99 questions
Q61
It the volumesd of two cones are in the ratio of 1 : 4 and their diameters are in the ratio of 4: , then the rratio of their heights is :
Answer: Option D
Q62
Volume of a hemisphrere is 19404 cu. cm. Its radius is :
Answer: Option B
Q63
A well with 14 m inside diameter is dug 10 m deep. Earth taken out of it has been evently spread all around it to a width of 21 m to form an embankment. The height of the embankment is :
Answer: Option B
Q64
The radii of the bases of a cylinder nd a cone are in the ratio of 3 : 4 and their heights are in the ratio 2 : 3. Their volumes are in the ratio of :
Answer: Option A
Q65
A cylindrical vessel 32 cm high and 18 cm as radius o the base is filled with sand. This is emptied on the ground and a conical heap of sand formed . if the height of the conical heap is 24 cm, the radius of its base is :
Answer: Option C
Q66
A solid metallic cylinder of base radius 3 cm and height 5 cm is melted to form cones, each of height 1 cm and base radius 1 mm. the number of cones is :
Answer: Option D
Q67
if the ratio of volumes of two spheres is 1 ; 8, then the ratio their surface arreas is :
Answer: Option B
Q68
If the surface areas of two spheres are in the ratio of 4 : 25, then the ratio of their volumes is :
Answer: Option D
Q69
Water flows at the rate of 10 metres per minute from a cylindrical pipe 5 mm in diameter. How long will it take to fill up a conical vessel whose diameter at the base is 40 cm and depth 24 cm ?
Answer: Option C
Q70
A cone, a hemisphere and a cylinder stand on equal bases and have the same height. The ratio of their volumes is :
Answer: Option A