Mathematics · Mensuration
A solid metallic sphere of radius 15 cm is melted and recast into solid spherical balls of radius 3 cm each. What is the ratio of the surface area of the original sphere to the sum of the surface areas of all the recast balls?
- 11 : 3✓
- 21 : 5
- 33 : 8
- 42 : 7
Correct answer
1 : 3
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Preparing for Mathematics?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Want more practice questions on Mensuration?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Mathematics · Mensuration