SSC CHSL Tier-1 previous year question
A hemispherical iron bowl has thickness 0.5cm and inner radius 3cm. Find the volume of iron used.
Asked in SSC CHSL Tier-1 (14 Nov 2025 Shift 3) · Quantitative Aptitude
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Correct answer: (C) 127π/12 cm³
Outer radius=3.5cm. Volume of iron=(2/3)π(3.5³−3³)=(2/3)π(42.875−27)=(2/3)π(15.875)=127π/12 cm³.
हिंदी में प्रश्न
लोहे के एक अर्धगोलाकार कटोरे की मोटाई 0.5 सेमी है और अंदरूनी त्रिज्या 3 सेमी है। इस्तेमाल हुए लोहे का आयतन ज्ञात कीजिए।
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उत्तर और व्याख्या देखें
सही उत्तर: (C) 127π/12 सेमी³
बाहरी त्रिज्या=3.5सेमी। लोहे का आयतन=(2/3)π(3.5³−3³)=127π/12 सेमी³.
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