a) 26.5 cm b) 32 cm c) 36 cm d) 37.5 cm Answer: b Explanation: Let length = x ...
View QuestionThe sum of the radius and the height of a cylinder is 19 m. The total surface area of the cylinder is 1672 m^2, what is the volume of the cylinder ?
The sum of the radius and the height of a cylinder is 19 m. The total surface area ...
View QuestionThe length of the longest rod that can be placed in a room of dimensions 10 m × 10 m × 5 m is :
The length of the longest rod that can be placed in a room of dimensions 10 m × ...
View QuestionExcept for one face of a given cube, identical cubes are glued through their faces to all the other faces of the given cube. If each side of the given cube measures 3 cm, then what is the total surface area of the solid body thus formed ?
a) 225 cm2 b) 234 cm2 c) 270 cm2 d) 279 cm2 Answer: b Explanation: Clearly, each of ...
View QuestionThe dimensions of an open box are 52 cm × 40 cm × 29 cm. It thickness is 2 cm. If 1 cu.cm of metal used in the box weight 0.5 gm, then the weight of the box is :
The dimensions of an open box are 52 cm × 40 cm × 29 cm. It thickness is ...
View QuestionThe radius of a sphere is equal to the radius of the base of a right circular cone, and the volume of the sphere is double the volume of the cone. The ratio of the height of the cone to the radius of its base is :
a) 2 : 1 b) 1 : 2 c) 2 : 3 d) 3 : 2 Answer: a Explanation: ...
View QuestionThe radius of a cylinder is 5 m more than its height. If the curved surface area of the cylinder is 792 m^2, what is the volume of the cylinder ?
The radius of a cylinder is 5 m more than its height. If the curved surface area of ...
View QuestionIf the radius of the base and height of a cylinder and cone are each equal to r, and the radius of a hemisphere is also equal to r, then the volumes of the cone, cylinder and hemisphere are in the ratio ?
a) 1 : 2 : 3 b) 1 : 3 : 2 c) 2 : 1 : 3 d) 3 : 2 : 1 Answer: ...
View QuestionIn a kilometre race, A beats B by 30 seconds and B beats C by 15 seconds. If A beats C by 180 m, the time taken by A to run 1 kilometre, is ?
a) 200 sec b) 205 sec c) 210 sec d) 250 sec Answer: b Explanation: In a km race, ...
View QuestionIn a race of 200 m, B can give a start of 10 m to A and C can give a start of 20 m to B. The start that C can give to A in the same race is ?
a) 27 m b) 29 m c) 30 m d) 25 m Answer: b Explanation: B : A = ...
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