AP Police SI previous year question
Hollow iron roller, length 63cm, girth 440cm, thickness 4cm. Volume of metal (cu.cm) is
Asked in AP Police SI Prelims: 2018 (Paper I & II) · Quantitative Aptitude
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Correct answer: (C) 107712
2πR=440→R=70. r=66. Volume=π(R²−r²)×63 = (22/7)(4900−4356)(63) = 107712.
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हिंदी में प्रश्न
एक खोखला लोहे का रोलर है, जिसकी लंबाई 63cm, परिधि (गर्थ) 440cm और मोटाई 4cm है। धातु का आयतन (घन cm) है
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (C) 107712
2πR=440→R=70। r=66। आयतन = π(R²−r²)×63 = (22/7)(4900−4356)(63) = 107712।
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