RBI Assistant Prelims practice question
A man walks 20 km South, then turns right and walks 21 km. Find his distance from the starting point.
From a RBI Assistant Prelims Reasoning practice set · Reasoning
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Correct answer: (C) 29 km
By the Pythagoras theorem, distance = √(20²+21²) = √841 = 29 km.
हिंदी में प्रश्न
एक व्यक्ति 20 किमी दक्षिण की ओर चलता है, फिर दायें मुड़कर 21 किमी चलता है। आरंभिक बिंदु से उसकी दूरी ज्ञात कीजिए।
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (C) 29 km
पाइथागोरस प्रमेय से, दूरी = √(20²+21²) = √841 = 29 किमी।
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