SSC GD Constable practice question
The radius of a solid sphere is 7 cm. Find its surface area. (Use π = 22/7)
From a SSC GD Constable Quantitative Aptitude practice set · Quantitative Aptitude
Tap an option to check your answer.
Show answer and explanation
Correct answer: (C) 616 cm²
Radius r = 7 cm. Surface area of sphere = 4πr² = 4 × (22/7) × 7² = 616 cm².
हिंदी में प्रश्न
एक ठोस गोले की त्रिज्या 7 सेमी है। इसका पृष्ठीय क्षेत्रफल ज्ञात कीजिए। (π = 22/7 का प्रयोग करें)
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (C) 616 cm²
त्रिज्या r = 7 सेमी है। गोले का पृष्ठीय क्षेत्रफल = 4πr² = 4 × (22/7) × 7² = 616 वर्ग सेमी।
More solved Quantitative Aptitude questions
- A cistern already has one-fourth of its capacity filled with water. Pipe A can fill the empty cistern in 12 hours, and a leak can empty a…
- Section X of a school has 25 students with an average height of 80 cm above a reference mark, and Section Y has 15 students with an…
- 16 labourers working 4 hours a day can unload a truck of cement bags in 15 days. If 12 labourers are to unload the same truck of cement…
- A carpenter needs two diagonal support beams of lengths 4√2 m and 3√3 m for a roof frame. Using √2 = 1.414 and √3 = 1.732, find the total…
- A sum of ₹5,850 is divided among Anita, Arjun and Sanjay in the ratio 7 : 2 : 6. What is the share of Anita?
- A furniture dealer offers a 24% discount on the marked price of a bookshelf and sells it for ₹2280. Find the marked price of the bookshelf.