Question: If the radius of the sphere is doubled then it’s volume is increased by?

• 1. 100 %
• 2. 200 %
• 3. 700 %
• 4. 800 %

Question: The curved surface area of a cylindrical pillar is 264 m2 and its volume is 924 m3. Find the ratio of its diameter to its height.

• 1. 3 : 7
• 2. 7 : 3
• 3. 6 : 7
• 4. 7 : 6

Question: A cistern of capacity 8000 litres measures externally 3.3 m by 2.6 m by 1.1 m and its walls are 5 cm thick. The thickness of the bottom is__________?

• 1. 90 cm
• 2. 1 dm
• 3. 1 m
• 4. 1.1 cm

Question: What is the total surface area of a right circular cone of height 14 cm and base radius 7 cm?

• 1. 344.35 cm2
• 2. 344.35 cm2
• 3. 344.35 cm2
• 4. None of these

Question: A large cube is formed from the material obtained by melting three smaller cubes of 3, 4 and 5 cm side. What is the ratio of the total surface areas of the smaller cubes and the large cube?

• 1. 2 : 1
• 2. 3 : 2
• 3. 25 : 18
• 4. 27 : 20

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

• 1. 4920 cm2
• 2. 4727 cm2
• 3. 9856 cm2
• 4. 19712 cm2

Question: What is probability of drawing two clubs from a well shuffled pack of 52 cards?

• 1. 13/51
• 2. 1/17
• 3. 1/26
• 4. 13/17

Question: What are the chances that no two boys are sitting together for a photograph if there are 5 girls and 2 boys?

• 1. 1/21
• 2. 4/7
• 3. 2/7
• 4. 5/7

Question: A card is drawn from a pack of 52 cards. The probability of getting a queen of club or a king of heart is___________?

• 1. 1/13
• 2. 2/13
• 3. 1/26
• 4. 1/52

Question: From a pack of cards two cards are drawn one after the other, with replacement. The probability that the first is a red card and the second is a king is_________?

• 1. 1/26
• 2. 3/52
• 3. 15/26
• 4. 11/26