Question
A solid metallic cone with a radius of 6 cm and height
of 12 cm is melted and recast into smaller cones with a radius of 3 cm and a height of 4 cm. How many smaller cones can be formed?Solution
Volume of the larger cone = (1/3)πr²h = (1/3) × (22/7) × 6² × 12. = (1/3) × (22/7) × 36 × 12 cm³. Volume of a smaller cone = (1/3)πr²h = (1/3) × (22/7) × 3² × 4. = (1/3) × (22/7) × 9 × 4 cm³. Number of smaller cones = (1/3) × (22/7) × 36 × 12/ (1/3) × (22/7) × 9 × 4 = 12 Correct answer: c) 12.
Which Indian state was ranked at the top in terms of overall environmental performance in the annual data compendium released by the non-profit Centre ...
Chitrakoot district is situated in which of the following state ?
The famous physicist Victor Franz Hess is known for the discovery of:
Which challenge was launched by Deendayal Antyodaya Yojana-National Rural Livelihood Mission to Promote Clean Energy in Rural Areas?
The FIFA Women’s World Cup 2023TM will be staged in which country?
1. Brazil
2. America and New Zealand Jointly.
Select th...
Which international research institute, headquartered in Hyderabad and focusing on tropical dryland agrifood system innovation, has joined the One CGIAR...
The Taj Mahal is located in the city of Agra on the banks of the river__________.
Anish Shah, the newly appointed President of the Federation of Indian Chambers of Commerce and Industry (FICCI) for the term 2023-24, currently holds th...
The author of the novel ‘The Color Purple’ is __________.
Which of the following occupies less memory when saving an MS-Word file?
