Volume & Surface Area Questions and Answers
Practice ModeShowing 10 of 99 questions
Q51
A sphere of radius 6.3 cm is melted and cast into a right circular cone of height 25.2 cm. The radius of the base of the cone is :
Answer: Option A
Q52
If the height and diameter of a right circular cylinder are 32 cm and 6 to the volume of the cylinder is :
Answer: Option C
Q53
A hemisphere of lead of radius 6 cm is cast into a right circular cone of height 75 cm. The radius of the base of the cone is :
Answer: Option C
Q54
The diameter and the slant height of a conical tomb are 28 m and 50 m respectively. The cost of whitewashing its curved surface at the rate of 80 paise per square metre is :
Answer: Option B
Q55
The height and the radius of the base of a cone are each increased by 100%. The volume of the new cone becomes how many times of the volume of the original cone ?
Answer: Option A
Q56
A right cylinder and a righ circular cone have the same radius and the same volume. The ratio of the height f the cylinder to that of the cone is :
Answer: Option D
Q57
A right cylindrical vessel is full of water. How many right cones having the same radius and heights as those of the right cylinder will be needed to store that water ?
Answer: Option B
Q58
A cylindrical piece of metal of radius 2 cm and height 6 cm is shaped into a cone of same radius. The height of the cone is :
Answer: Option D
Q59
The length of canvas 1.1 m wider required to build a coical tent of height 14 m and the floor area 346.5 sq.m is :
Answer: Option A
Q60
How many metres of cloth 2.5 m wide will be required to make a conical tent whose base radius is 7 m and height is 24 m ?
Answer: Option C