Material downloaded from http://brilliantcoaching.blogspot.com
BRILLIANT COACHING
Chapter : Surface Area & Volumes--3
Take p= 22/7, unless stated otherwise.
1 marks Questions
Q-1 The diameter of a metallic sphere is 6 cm. It is melted and drawn into a wire having diameter of the cross-section as 0.2 cm. Find the length of the wire?
Q-2 What is the height of a cone whose base area and volume are numerically equal?
Q-3 A rectangular piece of paper of dimensions 60 cm X 88 cm is rolled to form a hollow circular cylinder of height 60 cm. What is the radius of the cylinder?
Q-4 The bottom of the glass has a hemispherical raised portion. The glass is fitted with orange juice. How much juice a person will get?
2/3 marks Questions
Q-5 The curved surface area of a cone is 550 cm2. Find the volume of the cone given that its base diameter is 14 cm.
Q-6 A square field and an equilateral triangular park have equal perimeters. If the cost of ploughingthe field at the rate of Rs. 5 per m2 is Rs. 720, find the cost of maintaining the park at the rate of Rs. 10per m2.
Q-7 An iron solid sphere of radius 3 cm is melted and recast into small spherical balls of radius 1cm each. Assuming that there is no wastage in the process, find the number of small spherical balls made from the given sphere?
Q-8 A rectangular water tank of base 11 cm X 6 cm contain water up to height of 5 m. If the water in the tank is transferred to a cylindrical tank of radius 3.5 m, find the height of water level to be raised in this tank?
Material downloaded from http://brilliantcoaching.blogspot.com
BRILLIANT COACHING
Chapter : Surface Area & Volumes--3
Take p= 22/7, unless stated otherwise.
1 marks Questions
Q-1 The diameter of a metallic sphere is 6 cm. It is melted and drawn into a wire having diameter of the cross-section as 0.2 cm. Find the length of the wire?
Q-2 What is the height of a cone whose base area and volume are numerically equal?
Q-3 A rectangular piece of paper of dimensions 60 cm X 88 cm is rolled to form a hollow circular cylinder of height 60 cm. What is the radius of the cylinder?
Q-4 The bottom of the glass has a hemispherical raised portion. The glass is fitted with orange juice. How much juice a person will get?
2/3 marks Questions
Q-5 The curved surface area of a cone is 550 cm2. Find the volume of the cone given that its base diameter is 14 cm.
Q-6 A square field and an equilateral triangular park have equal perimeters. If the cost of ploughingthe field at the rate of Rs. 5 per m2 is Rs. 720, find the cost of maintaining the park at the rate of Rs. 10per m2.
Q-7 An iron solid sphere of radius 3 cm is melted and recast into small spherical balls of radius 1cm each. Assuming that there is no wastage in the process, find the number of small spherical balls made from the given sphere?
Q-8 A rectangular water tank of base 11 cm X 6 cm contain water up to height of 5 m. If the water in the tank is transferred to a cylindrical tank of radius 3.5 m, find the height of water level to be raised in this tank?
Material downloaded from http://brilliantcoaching.blogspot.com
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