Mathematics · Machines and Efficiency
10-इकाई के भार पर 5-इकाई का प्रयास (बल) लगाया जाता है। प्रयास और भार द्वारा तय की गई दूरी क्रमशः 50 और 20 इकाई है। इस मशीन की दक्षता ज्ञात कीजिए।
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