IBPS RRB Officer Scale-I Prelims practice question
On an airport walkway 196 m long, the speed of the walkway and the walking speed of a passenger using it are in the ratio 2:5. Walking along it in the same direction as its motion, the passenger covers its full length in 28 seconds. Find the passenger's own walking speed.
From a IBPS RRB Officer Scale-I Prelims Quantitative Aptitude practice set · Quantitative Aptitude
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Correct answer: (A) 5 m/s
Let escalator speed = 2x, walking speed = 5x. Combined speed = 7x = 196/28 = 7 m/s, so x = 1. Passenger's own speed = 5x = 5 m/s.
हिंदी में प्रश्न
196 मीटर लंबी एक एयरपोर्ट वॉकवे पर, वॉकवे की चाल और उस पर चलने वाले यात्री की चलने की चाल का अनुपात 2:5 है। इसकी गति की दिशा में चलते हुए, यात्री इसकी पूरी लंबाई 28 सेकंड में तय करता है। यात्री की अपनी चलने की चाल ज्ञात कीजिए।
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सही उत्तर: (A) 5 मी/से
मान लीजिए एस्केलेटर की चाल = 2x, चलने की चाल = 5x। संयुक्त चाल = 7x = 196/28 = 7 मी/से, अतः x = 1। यात्री की अपनी चाल = 5x = 5 मी/से।
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